Government · Iowa

Structures — Story County, IA (Proposal 85-0305-311)

Iowa Department of TransportationIssuing agency·Iowa·via a public procurement portal

25days left

Due Oct 20, 2026·Posted Sep 22, 2026

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AI takeaways

The Iowa Department of Transportation is seeking bids for a bridge replacement and related roadway work on U.S. 30 in Story County, Iowa, including a pretensioned prestressed concrete beam bridge over the South Skunk River.
Bids are due on October 20, 2026, and the proposal guaranty is $750,000.00.
The project includes PCC pavement, new triple-box RCB culverts, traffic signs, lighting, and a bridge replacement with a 376'-0 x 60'-0 pretensioned prestressed concrete beam bridge.
The contract time includes a late start date of April 5, 2027, with 140 work days and liquidated damages of $2,000.00 per day for the overall site.
Federal Aid - Predetermined Wages are in effect for all projects.
Requirement: DBE Goal: 0.0%
Requirement: Proposal Guaranty: $750,000.00

Bonding: Bid Bond: $750,000.00
Set-asides: DBE
Term: 140 WORK DAYS
Method: Competitive Sealed Bid

These takeaways are AI-generated and may be incomplete or wrong. Always verify every detail against the official documents before you bid.

Want to know if you can be bonded for this project? Get prequalified.The bid asks for $750K — that’s Propeller’s credit tier (up to $3M). One free application, soft pull.

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Contact the buyer

Iowa DOT Office of Contracts

dot.contracts@iowadot.usEmail 515-239-1414Phone

Location:

Story County, Iowa

Open in Maps ↗

Solicitation

85-0305-311-B014

85-0305-311

Method

Competitive Sealed Bid

Duration

140 WORK DAYS

What this bid is asking for

AI-generated

Submit a sealed bid for Proposal ID 85-0305-311 by October 20, 2026.
Provide a proposal guaranty of $750,000.00 with the bid.
Perform bridge replacement, PCC pavement, RCB culvert construction, traffic sign installation, and lighting work on U.S. 30 in Story County, Iowa.
Comply with Federal Aid - Predetermined Wages and all applicable Iowa DOT standard specifications.

Requirements

From the documents

Bonding capacity: Bid Bond: $750,000.00Need a line this size? Get prequalified →

Posted Scope of Work

Project

Proposal ID: 85-0305-311
Bid Order: 014
County: Story
Work Type: Structures
Project Numbers: BRF-030-5(311)--38-85; NHSX-030-5(315)--3H-85; NHSX-030-5(314)--3H-85; NHSX-030-5(313)--3H-85; NHSX-030-5(312)--3H-85; NHSX-030-5(310)--3H-85

Bidding

Bids for this proposal open on letting day (October 20, 2026). Prime contractors must be authorized through Bid Express; see the Iowa DOT current lettings page for letting guidelines and critical dates.

Documents

Project Number: NHSX-030-5(314)--3H-85 County: STORY
Project Work Type: TRAFFIC SIGNS Route: U.S. 30
Location: S Duff Ave to S Dayton Ave in Ames (WB)
Road System: PRIMARY ROAD (on NHS)
Federal Aid - Wages: Federal Aid - Predetermined Wages are in Effect
Project Number: NHSX-030-5(315)--3H-85 County: STORY
Project Work Type: LIGHTING Route: U.S.

Scope, read from the documentsAI-generated

The work includes bridge replacement (BRF-030-5(311)--38-85) with a 376'-0 x 60'-0 pretensioned prestressed concrete beam bridge over the South Skunk River; PCC pavement grade and new (NHSX-030-5(310)--3H-85); two new triple-box RCB culverts (NHSX-030-5(312)--3H-85 and NHSX-030-5(313)--3H-85); traffic signs (NHSX-030-5(314)--3H-85); and lighting (NHSX-030-5(315)--3H-85). The contract time includes a late start date of April 5, 2027, with 140 work days for the overall site and a specified start date of June 1, 2027, with 61 calendar days for the Duff Ramp closure.

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Documents

Download zip

20OCT014.zipZIP

Download

014_85-0305-310_efiles_(Road).zipZIP

Download

014_85-0305-314_eFiles_(Road).zipZIP

Download

014_85-0305-311_eFiles_(Bridge).zipZIP

Download

014_85-0305-312_eFiles_(Bridge).zipZIP

Download

Questions & answers

AI-generated

What is the due date for bids?

Bids for this proposal open on letting day (October 20, 2026).

What is the DBE goal for this project?

DBE Goal: 0.0%

What is the proposal guaranty amount?

Proposal Guaranty: $750,000.00

What is the contract duration?

The contract time includes 140 WORK DAYS for the overall site with a late start date of 04/05/2027.

Full source recordEvery field Iowa Department of Transportation published, untouched

Docs

https://secure.iowadot.gov/contracts/october_2026_letting/20OCT014.zip, https://secure.iowadot.gov/contracts/october_2026_letting/014_85-0305-310_efiles_(Road).zip, https://secure.iowadot.gov/contracts/october_2026_letting/014_85-0305-314_eFiles_(Road).zip, https://secure.iowadot.gov/contracts/october_2026_letting/014_85-0305-311_eFiles_(Bridge).zip, https://secure.iowadot.gov/contracts/october_2026_letting/014_85-0305-312_eFiles_(Bridge).zip

County

STORY

Page Url

https://ia.iowadot.gov/contracts/biddocuments/October2026

Bid Order

014

Enriched

Yes

Projects

BRF-030-5(311)--38-85, NHSX-030-5(315)--3H-85, NHSX-030-5(314)--3H-85, NHSX-030-5(313)--3H-85, NHSX-030-5(312)--3H-85, NHSX-030-5(310)--3H-85

Proposal Id

85-0305-311

Letting Date

Oct 20, 2026

List Url Hint

ia.iowadot.gov/contracts/biddocuments

Package Text

9/8/2026 1:05 PM CONTRACTS AND SPECIFICATIONS BUREAU Proposal Proposal ID: 85-0305-311 Letting Date: October 20, 2026 Call Order: 014 Proposal Work Type: BRIDGE REPLACEMENT - PPCB DBE Goal: 0.0% Contracting Authority: IOWA DEPARTMENT OF TRANSPORTATION Proposal Guaranty: $750,000.00 This proposal includes the following project(s): Project Number: NHSX-030-5(310)--3H-85 County: STORY Project Work Type: PCC PAVEMENT - GRADE AND NEW Route: U.S. 30 Location: S Duff Ave to S Dayton Ave in Ames (WB) Road System: PRIMARY ROAD (on NHS) Federal Aid - Wages: Federal Aid - Predetermined Wages are in Effect Project Number: BRF-030-5(311)--38-85 County: STORY Project Work Type: BRIDGE REPLACEMENT - PPCB Route: U.S. 30 Location: South Skunk River 1.2 mi W of I-35 (WB) Road System: PRIMARY ROAD (on NHS) Federal Aid - Wages: Federal Aid - Predetermined Wages are in Effect Project Number: NHSX-030-5(312)--3H-85 County: STORY Project Work Type: RCB CULVERT NEW - TRIPLE BOX Route: U.S. 30 Location: W of the South Skunk River (WB) Road System: PRIMARY ROAD (on NHS) Federal Aid - Wages: Federal Aid - Predetermined Wages are in Effect Project Number: NHSX-030-5(313)--3H-85 County: STORY Project Work Type: RCB CULVERT NEW - TRIPLE BOX Route: U.S. 30 Location: E of the South Skunk River (WB) Road System: PRIMARY ROAD (on NHS) Federal Aid - Wages: Federal Aid - Predetermined Wages are in Effect Project Number: NHSX-030-5(314)--3H-85 County: STORY Project Work Type: TRAFFIC SIGNS Route: U.S. 30 Location: S Duff Ave to S Dayton Ave in Ames (WB) Road System: PRIMARY ROAD (on NHS) Federal Aid - Wages: Federal Aid - Predetermined Wages are in Effect Project Number: NHSX-030-5(315)--3H-85 County: STORY Project Work Type: LIGHTING Route: U.S. 30 Location: S Duff Ave to S Dayton Ave in Ames (WB) Road System: PRIMARY ROAD (on NHS) Federal Aid - Wages: Federal Aid - Predetermined Wages are in Effect Contracts and Specifications Bureau 9/8/2026 1:05 PM The following sections are alternates: Contract Time Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 Site ID Site Details Liquidated Damages 00 Late Start Date 04/05/2027 140 WORK DAYS $2,000.00 Overall site. 01 Specified Start Date 06/01/2027 61 CALENDAR DAYS $2,000.00 Duff Ramp closure. (*) - Indicates Cost Plus Time Site. See Schedule of Items for Cost Per Unit 0003 AA 1 DESIGN NO. 227; ALT ‘AA’ OPT 1: BEAMS, PPC, BTC105 BID THIS SECTION IF ALTERNATE ‘AA’ OPTION 1 IS CHOSEN (311) 0004 AA 2 DESIGN NO. 227; ALT ‘AA’ OPT 2: BEAMS, PPC, BTC105 BID THIS SECTION IF ALTERNATE ‘AA’ OPTION 2 IS CHOSEN (311) Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 Notes Notes : There are no notes for this proposal. Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Specifications List Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 Note Description 001.2023 *** STANDARD SPECIFICATIONS -- SERIES 2023 *** The Iowa Department of Transportation STANDARD SPECIFICATIONS FOR HIGHWAY AND BRIDGE CONSTRUCTION, SERIES 2023, plus applicable General Supplemental Specifications, Developmental Specifications, Supplemental Specifications AND Special Provisions shall apply to construction work on this contract. Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Specifications List Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 Note Description 005.1107.02 *** Revisions to Article 1107.02 *** Article 1107.02, Insurance, is amended by the following modifications and additions. This proposal note becomes null and void January 1, 2027. A. It shall be the Contractor's responsibility to have liability insurance covering all of the construction operations incident to contract completion and the Contractor must have on file with the Contracting Authority a current "Certificate of Insurance" prior to award of contract. The certificate shall identify the insurance company firm name and address, Contractor firm name, policy period, type of policy, limits of coverage, and scope of work covered (single contract or statewide). This requirement shall apply with equal force, whether the work is performed by persons employed directly by the Contractor including a subcontractor, persons employed by a subcontractor, or by an independent contractor. B. In addition to the above, the Contracting Authority shall be included as an insured party, or a separate owner's protective policy shall be filed showing the Contracting Authority as an insured party. C. The liability insurance shall be written by an insurance company (or companies) qualified to do business in Iowa. For independent contractors engaged solely in the transportation of materials, the minimum coverage provided by such insurance shall be not less than that required by Chapter 325A, Code of Iowa, for such truck operators or contract carriers as defined therein. For all other contractors, subcontractors, independent contractors, and the Contracting Authority, the minimum coverage by such insurance shall be as follows: General Liability, Including: BODILY INJURY Independent Contractors $500,000 Each Occurrence Contractual Liability, $500,000 Aggregate Products and Completed PROPERTY DAMAGE Operations $250,000 Each Occurrence $250,000 Aggregate or BODILY INJURY AND PROPERTY DAMAGE - COMBINED SINGLE LIMIT* $750,000 Each Occurrence $750,000 Aggregate *A comprehensive Catastrophe Liability Policy (Umbrella) can be used to aid in achieving the minimum required limits. Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Specifications List Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 Note Description *A comprehensive Catastrophe Liability Policy (Umbrella) can be used to aid in achieving the minimum required limits. D. Failure on the part of the Contractor to comply with the requirements of this article will be considered sufficient cause to suspend the work, withhold estimates, and to deny the Contractor from receiving further contract awards, as provided in Article 1103.01. 410.11 *** STORM WATER POLLUTION PREVENTION PLAN *** A Storm Water Pollution Prevention Plan has been developed by the Contracting Authority for one or more projects on this contract. See the project plans (or other contract document) for specific Storm Water Pollution Prevention Plan details. 500.01 *** WINTER WORK *** The free time allowed between November 15 and April 1 will not be permitted on this project. The Contractor shall work during the winter on all working days as defined in Article 1101.03 'Working Day'. DS-23011 DEVELOPMENTAL SPECIFICATIONS FOR FLOATING SILT CURTAIN DS-23032 DEVELOPMENTAL SPECIFICATIONS FOR ELECTRONIC TICKETING DS-23074 DEVELOPMENTAL SPECIFICATIONS FOR INTELLIGENT TRANSPORTATION SYSTEMS DS-23082 DEVELOPMENTAL SPECIFICATIONS FOR HIGH PERFORMANCE CONCRETE FOR STRUCTURES DS-23083 DEVELOPMENTAL SPECIFICATIONS FOR FIBER REINFORCEMENT FOR STRUCTURAL CONCRETE DS-23088 DEVELOPMENTAL SPECIFICATIONS FOR DIAMOND GRINDING RUMBLE STRIPS Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Specifications List Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 Note Description FHWA-1273.09 FHWA-1273: REQUIRED CONTRACT PROVISIONS FEDERAL-AID CONSTRUCTION CONTRACTS -- REVISED OCTOBER 23, 2023 23 U.S.C. 133(i) requires application of Davis Bacon predetermined wages on certain projects on roads functionally classified as a local road or a rural minor collector. This supersedes the applicability described in FHWA-1273 Section IV. GS-23007 GENERAL SUPPLEMENTAL SPECIFICATIONS FOR HIGHWAY AND BRIDGE CONSTRUCTION, OCTOBER 20, 2026 RELEASE IA26-28.4A PREDETERMINED WAGE RATE - GENERAL DECISION NUMBER IA20260028 FOR HEAVY AND HIGHWAY CONSTRUCTION -- STATEWIDE (EXCEPT SCOTT COUNTY) Note: The Contractor shall review the contract documents and is responsible for identifying which zone(s), as defined in the Predetermined Wage Rate specification, apply to the work on the contract. *** Additional Requirement *** Contracts where the Department is the Contracting Authority: The Prime Contractor and each approved Subcontractor shall submit certified payrolls weekly to the Project Engineer. Each Contractor shall use the AASHTOWare Project Civil Rights and Labor (AWP CRL) software to electronically submit Certified Payroll Reports. The Contractor shall list the craft for each employee covered by the Predetermined Wage Rates. The Prime Contractor shall review and approve each Subcontractor’s payroll within AWP CRL. Contracts where the Department is not the Contracting Authority: The Prime Contractor shall submit certified payrolls for itself and each approved Subcontractor weekly to the Project Engineer. The Contractor may use the Iowa D.O.T. Certified Payroll form or other approved form. The Contractor shall list the craft for each employee covered by the Predetermined Wage Rates. The Prime Contractor shall sign each of the Subcontractor's payrolls to acknowledge the submittal of the Certified Payroll. Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0001 ROADWAY ITEMS - NHSX-030-5(310)--3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 0010 2101-0850001 0.532 CLEARING AND GRUBBING ACRE _________._____ _________._____ 0020 2102-2710070 4,503.000 EXCAVATION, CLASS 10, ROADWAY AND BORROW CY _________._____ _________._____ 0030 2102-2710090 9,365.000 EXCAVATION, CLASS 10, WASTE CY _________._____ _________._____ 0040 2105-8425015 6,070.000 TOPSOIL, STRIP, SALVAGE AND SPREAD CY _________._____ _________._____ 0050 2107-0425020 148.700 COMPACTING BACKFILL ADJACENT TO BRIDGES, CULVERTS OR STRUCTURES CY _________._____ _________._____ 0060 2107-0875100 3,451.000 COMPACTION WITH MOISTURE CONTROL CY _________._____ _________._____ 0070 2115-0100000 6,668.590 MODIFIED SUBBASE CY _________._____ _________._____ 0080 2122-5190105 6,696.600 PAVED SHOULDER, P.C. CONCRETE, 10.5 IN. SY _________._____ _________._____ 0090 2123-7450000 101.030 SHOULDER CONSTRUCTION, EARTH STA _________._____ _________._____ 0100 2301-0690203 1,059.800 BRIDGE APPROACH, BR-203 SY _________._____ _________._____ 0110 2301-1033105 16,390.500 STANDARD OR SLIP FORM PORTLAND CEMENT CONCRETE PAVEMENT, CLASS C, CLASS 3 DURABILITY, 10.5 IN. SY _________._____ _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0001 ROADWAY ITEMS - NHSX-030-5(310)--3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 0120 2301-7000110 19,188.600 PAYMENT ADJUSTMENT INCENTIVE/DISINCENTIVE FOR PCC PAVEMENT THICKNESS (BY SCHEDULE) EACH 1.00000 19,188.60 0130 2304-0101000 361.500 TEMPORARY PAVEMENT SY _________._____ _________._____ 0140 2317-7000110 12,300.400 PAYMENT ADJUSTMENT INCENTIVE/DISINCENTIVE FOR PCC PAVEMENT SMOOTHNESS (BY SCHEDULE) EACH 1.00000 12,300.40 0150 2402-0425040 180.100 FLOODED BACKFILL CY _________._____ _________._____ 0160 2402-2720100 61.700 EXCAVATION, CLASS 20, FOR ROADWAY PIPE CULVERT CY _________._____ _________._____ 0170 2412-0000100 3,419.000 LONGITUDINAL GROOVING IN CONCRETE, BRIDGE DECK AND/OR APPROACHES SY _________._____ _________._____ 0180 2416-0100018 1.000 APRONS, CONCRETE, 18 IN. DIA. EACH _________._____ _________._____ 0190 2416-1180018 64.000 CULVERT, CONCRETE ROADWAY PIPE, 18 IN. DIA. LF _________._____ _________._____ 0200 2435-0251224 1.000 INTAKE, SW-512, 24 IN. EACH _________._____ _________._____ 0210 2502-8212034 8,196.000 SUBDRAIN, LONGITUDINAL, (SHOULDER) 4 IN. DIA. LF _________._____ _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0001 ROADWAY ITEMS - NHSX-030-5(310)--3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 0220 2502-8221306 25.000 SUBDRAIN OUTLET, DR-306 EACH _________._____ _________._____ 0230 2503-0500402 6.000 BRIDGE END DRAIN, DR-402 EACH _________._____ _________._____ 0240 2505-4008300 912.500 STEEL BEAM GUARDRAIL LF _________._____ _________._____ 0250 2505-4008415 3.000 STEEL BEAM GUARDRAIL BARRIER TRANSITION SECTION, BA-209 EACH _________._____ _________._____ 0260 2505-4021010 3.000 STEEL BEAM GUARDRAIL END ANCHOR, BOLTED EACH _________._____ _________._____ 0270 2505-4021020 1.000 STEEL BEAM GUARDRAIL END ANCHOR, W-BEAM EACH _________._____ _________._____ 0280 2505-4021720 4.000 STEEL BEAM GUARDRAIL TANGENT END TERMINAL, BA-205 EACH _________._____ _________._____ 0290 2505-4502100 17.000 STEEL BEAM GUARDRAIL, POST ADAPTER UNIT, BA-210 EACH _________._____ _________._____ 0300 2507-3250005 16.000 ENGINEERING FABRIC SY _________._____ _________._____ 0310 2507-6800061 8.910 REVETMENT, CLASS E TON _________._____ _________._____ 0320 2510-6745850 20,169.800 REMOVAL OF PAVEMENT SY _________._____ _________._____ 0330 2511-0300000 138.500 REMOVAL OF RECREATIONAL TRAIL SY _________._____ _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0001 ROADWAY ITEMS - NHSX-030-5(310)--3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 0340 2511-0302700 137.000 RECREATIONAL TRAIL, PORTLAND CEMENT CONCRETE, 7 IN. SY _________._____ _________._____ 0350 2519-1002072 2,871.900 FENCE, CHAIN LINK, 72 IN. HEIGHT LF _________._____ _________._____ 0360 2519-3000000 57.100 FLOOD PLAIN FENCE LF _________._____ _________._____ 0370 2519-4200120 2,944.200 REMOVAL OF FENCE, CHAIN LINK LF _________._____ _________._____ 0380 2520-3350010 1.000 FIELD LABORATORY EACH _________._____ _________._____ 0390 2526-8285020 CONSTRUCTION SURVEY, CONTROL POINT SURVEY LUMP SUM LUMP SUM _________._____ 0400 2526-8285040 CONSTRUCTION SURVEY, LOCATION SURVEY LUMP SUM LUMP SUM _________._____ 0410 2527-9263181 431.420 PAVEMENT MARKINGS REMOVED STA _________._____ _________._____ 0420 2527-9263209 642.110 PAINTED PAVEMENT MARKINGS, WATERBORNE OR SOLVENT-BASED STA _________._____ _________._____ 0430 2527-9263231 133.520 REMOVABLE TAPE MARKINGS, WET RETROREFLECTIVE STA _________._____ _________._____ 0440 2527-9270112 333.150 GROOVES CUT FOR PAVEMENT MARKINGS STA _________._____ _________._____ 0450 2528-2518000 6.000 SAFETY CLOSURE EACH _________._____ _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0001 ROADWAY ITEMS - NHSX-030-5(310)--3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 0460 2528-3800000 2,837.500 MODULAR GLARE SCREEN SYSTEM LF _________._____ _________._____ 0470 2528-8400048 2,437.500 TEMPORARY BARRIER RAIL, CONCRETE LF _________._____ _________._____ 0480 2528-8400157 4.000 TEMPORARY FLOODLIGHTING LUMINAIRE EACH _________._____ _________._____ 0490 2528-8445110 TRAFFIC CONTROL LUMP SUM LUMP SUM _________._____ 0500 2528-8445113 60.000 FLAGGERS EACH 660.00000 39,600.00 0510 2528-9290050 60.000 PORTABLE DYNAMIC MESSAGE SIGN (PDMS) CDAY _________._____ _________._____ 0520 2533-4980005 MOBILIZATION LUMP SUM LUMP SUM _________._____ 0530 2548-0000100 109.740 MILLED SHOULDER RUMBLE STRIPS, HMA SURFACE STA _________._____ _________._____ 0540 2548-0000110 118.900 ASPHALT EMULSION FOR FOG SEAL (SHOULDER RUMBLE STRIPS) GAL _________._____ _________._____ 0550 2548-0000250 89.320 DIAMOND GROUND SHOULDER RUMBLE STRIPS, PCC SURFACE STA _________._____ _________._____ 0560 2551-0000130 2.000 TEMP CRASH CUSHION, SEVERE USE (SU) EACH _________._____ _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0001 ROADWAY ITEMS - NHSX-030-5(310)--3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 0570 2599-9999005 7.000 ('EACH' ITEM) TEMP CRASH CUSHION, SEVERE USE (SU), REMOVE EACH _________._____ _________._____ 0580 2599-9999009 1,875.000 ('LINEAR FEET' ITEM) TEMPORARY BARRIER RAIL, CONCRETE, RELOCATE LF _________._____ _________._____ 0590 2599-9999009 687.500 ('LINEAR FEET' ITEM) TEMPORARY BARRIER RAIL, CONCRETE, REMOVE LF _________._____ _________._____ 0600 2601-2633100 8.000 MOWING ACRE _________._____ _________._____ 0610 2601-2634100 10.600 MULCHING ACRE _________._____ _________._____ 0620 2601-2636015 4.000 NATIVE GRASS SEEDING ACRE _________._____ _________._____ 0630 2601-2636043 1.300 SEEDING AND FERTILIZING (RURAL) ACRE _________._____ _________._____ 0640 2601-2642100 5.300 STABILIZING CROP - SEEDING AND FERTILIZING ACRE _________._____ _________._____ 0650 2602-0000020 7,493.000 SILT FENCE LF _________._____ _________._____ 0660 2602-0000030 1,466.000 SILT FENCE FOR DITCH CHECKS LF _________._____ _________._____ 0670 2602-0000071 8,959.000 REMOVAL OF SILT FENCE OR SILT FENCE FOR DITCH CHECKS LF _________._____ _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0001 ROADWAY ITEMS - NHSX-030-5(310)--3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 0680 2602-0000101 8,959.000 MAINTENANCE OF SILT FENCE OR SILT FENCE FOR DITCH CHECK LF _________._____ _________._____ 0690 2602-0000160 119.000 ROCK CHECK DAM LF _________._____ _________._____ 0700 2602-0000170 8.000 MAINTENANCE OF ROCK CHECK DAM EACH _________._____ _________._____ 0710 2602-0000180 3.000 REMOVAL OF ROCK CHECK DAM EACH _________._____ _________._____ 0720 2602-0000212 620.000 FLOATING SILT CURTAIN (HANGING) LF _________._____ _________._____ 0730 2602-0000240 310.000 MAINTENANCE OF FLOATING SILT CURTAIN LF _________._____ _________._____ 0740 2602-0000312 680.000 PERIMETER AND SLOPE SEDIMENT CONTROL DEVICE, 12 IN. DIA. LF _________._____ _________._____ 0750 2602-0000320 630.000 PERIMETER AND SLOPE SEDIMENT CONTROL DEVICE, 20 IN. DIA. LF _________._____ _________._____ 0760 2602-0000351 1,310.000 REMOVAL OF PERIMETER AND SLOPE OR DITCH CHECK SEDIMENT CONTROL DEVICE LF _________._____ _________._____ 0770 2602-0010010 1.000 MOBILIZATIONS, EROSION CONTROL EACH 600.00000 600.00 0780 2602-0010020 1.000 MOBILIZATIONS, EMERGENCY EROSION CONTROL EACH 1,200.00000 1,200.00 Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 Section: 0001 Total: _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0002 DESIGN NO. 0227; A 376'-0 X 60'-0 PRETENSIONED PRESTRESSED CONCRETE BEAM BRIDGE BRF-030-5(311)-- 38-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 0790 2104-2710020 1,128.400 EXCAVATION, CLASS 10, CHANNEL CY _________._____ _________._____ 0800 2401-6745625 REMOVAL OF EXISTING BRIDGE LUMP SUM LUMP SUM _________._____ 0810 2402-2720000 388.000 EXCAVATION, CLASS 20 CY _________._____ _________._____ 0820 2402-2721000 874.000 EXCAVATION, CLASS 21 CY _________._____ _________._____ 0830 2403-0100010 656.500 STRUCTURAL CONCRETE (BRIDGE) CY _________._____ _________._____ 0840 2403-1000005 807.300 FIBER REINFORCEMENT FOR STRUCTURAL CONCRETE CY _________._____ _________._____ 0850 2403-1000010 TRIAL BATCH AND TEST PLACEMENT (FIBER REINFORCED CONCRETE) LUMP SUM LUMP SUM _________._____ 0860 2403-7000210 807.300 HIGH PERFORMANCE STRUCTURAL CONCRETE CY _________._____ _________._____ 0870 2404-7775000 98,422.000 REINFORCING STEEL LB _________._____ _________._____ 0880 2404-7775005 254,181.000 REINFORCING STEEL, EPOXY COATED LB _________._____ _________._____ 0890 2404-7775009 7,052.000 REINFORCING STEEL, STAINLESS STEEL LB _________._____ _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0002 DESIGN NO. 0227; A 376'-0 X 60'-0 PRETENSIONED PRESTRESSED CONCRETE BEAM BRIDGE BRF-030-5(311)-- 38-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 0900 2407-0563080 14.000 BEAMS, PRETENSIONED PRESTRESSED CONCRETE, BTC80 EACH _________._____ _________._____ 0910 2414-6424110 806.000 CONCRETE BARRIER RAILING LF _________._____ _________._____ 0920 2501-0201057 1,870.000 PILES, STEEL, HP 10 X 57 LF _________._____ _________._____ 0930 2501-0201473 5,130.000 PILES, STEEL, HP 14 X 73 LF _________._____ _________._____ 0940 2501-6335010 220.000 PREBORED HOLES LF _________._____ _________._____ 0950 2507-2638650 24.400 BRIDGE WING ARMORING - EROSION STONE SY _________._____ _________._____ 0960 2507-3250005 1,245.200 ENGINEERING FABRIC SY _________._____ _________._____ 0970 2507-6800061 1,692.600 REVETMENT, CLASS E TON _________._____ _________._____ 0980 2526-8285040 CONSTRUCTION SURVEY, LOCATION SURVEY LUMP SUM LUMP SUM _________._____ 0990 2533-4980005 MOBILIZATION LUMP SUM LUMP SUM _________._____ Section: 0002 Total: _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0003 DESIGN NO. 227; ALT ‘AA’ OPT 1: BEAMS, PPC, BTC105 BID THIS SECTION IF ALTERNATE ‘AA’ OPTION 1 IS CHOSEN (311) Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 1000 2407-0563105 2.000 BEAMS, PRETENSIONED PRESTRESSED CONCRETE, BTC105 EACH _________._____ _________._____ 1010 2408-7800000 20,586.000 STRUCTURAL STEEL LB _________._____ _________._____ 1020 2599-9999005 12.000 ('EACH' ITEM) Remove and Reinstall Existing PPC Beams EACH _________._____ _________._____ Section: 0003 Total: _________._____ SECTION: 0004 DESIGN NO. 227; ALT ‘AA’ OPT 2: BEAMS, PPC, BTC105 BID THIS SECTION IF ALTERNATE ‘AA’ OPTION 2 IS CHOSEN (311) Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 1030 2407-0563105 14.000 BEAMS, PRETENSIONED PRESTRESSED CONCRETE, BTC105 EACH _________._____ _________._____ 1040 2408-7800000 20,294.000 STRUCTURAL STEEL LB _________._____ _________._____ Section: 0004 Total: _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0005 DESIGN NO. 727; A TRIPLE 12' X 9' X 191'-0 (105'-0, STAGE 2) CAST-IN-PLACE RCB CULVERT NHSX-030-5(312)-- 3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 1050 2104-2710020 247.100 EXCAVATION, CLASS 10, CHANNEL CY _________._____ _________._____ 1060 2402-2720000 3,077.000 EXCAVATION, CLASS 20 CY _________._____ _________._____ 1070 2402-3825025 206.000 GRANULAR MATERIAL FOR BLANKET CY _________._____ _________._____ 1080 2403-0100020 452.200 STRUCTURAL CONCRETE (RCB CULVERT) CY _________._____ _________._____ 1090 2404-7775000 77,487.000 REINFORCING STEEL LB _________._____ _________._____ 1100 2501-8400172 TEMPORARY SHORING LUMP SUM LUMP SUM _________._____ 1110 2507-3250005 542.000 ENGINEERING FABRIC SY _________._____ _________._____ 1120 2507-6800061 370.600 REVETMENT, CLASS E TON _________._____ _________._____ 1130 2526-8285040 CONSTRUCTION SURVEY, LOCATION SURVEY LUMP SUM LUMP SUM _________._____ 1140 2533-4980005 MOBILIZATION LUMP SUM LUMP SUM _________._____ Section: 0005 Total: _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0006 DESIGN NO. 827; A TRIPLE 16' X 12' X 214'-0 (128'-0 STAGE 2) CAST-IN-PLACE RCB CULVERT NHSX-030-5(313)-- 3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 1150 2104-2710020 298.900 EXCAVATION, CLASS 10, CHANNEL CY _________._____ _________._____ 1160 2402-2720000 6,082.000 EXCAVATION, CLASS 20 CY _________._____ _________._____ 1170 2402-3825025 332.000 GRANULAR MATERIAL FOR BLANKET CY _________._____ _________._____ 1180 2403-0100020 893.200 STRUCTURAL CONCRETE (RCB CULVERT) CY _________._____ _________._____ 1190 2404-7775000 160,692.000 REINFORCING STEEL LB _________._____ _________._____ 1200 2501-8400172 TEMPORARY SHORING LUMP SUM LUMP SUM _________._____ 1210 2507-3250005 509.500 ENGINEERING FABRIC SY _________._____ _________._____ 1220 2507-6800061 448.500 REVETMENT, CLASS E TON _________._____ _________._____ 1230 2526-8285040 CONSTRUCTION SURVEY, LOCATION SURVEY LUMP SUM LUMP SUM _________._____ 1240 2533-4980005 MOBILIZATION LUMP SUM LUMP SUM _________._____ Section: 0006 Total: _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0007 TRAFFIC SIGN ITEMS - NHSX-030-5(314)--3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 1250 2401-6745355 15.000 REMOVAL OF CONCRETE FOOTINGS OF HIGHWAY SIGNS EACH _________._____ _________._____ 1260 2402-2720000 704.800 EXCAVATION, CLASS 20 CY _________._____ _________._____ 1270 2403-0100000 168.800 STRUCTURAL CONCRETE (MISCELLANEOUS) CY _________._____ _________._____ 1280 2404-7775005 25,056.000 REINFORCING STEEL, EPOXY COATED LB _________._____ _________._____ 1290 2423-0001010 1.000 DYNAMIC MESSAGE SIGN (D.M.S.) INSTALLATION EACH _________._____ _________._____ 1300 2423-1051320 1.000 STEEL CANTILEVER SIGN TRUSS, 32 FT. ARM EACH _________._____ _________._____ 1310 2423-1051380 1.000 STEEL CANTILEVER SIGN TRUSS, 38 FT. ARM EACH _________._____ _________._____ 1320 2423-1060085 2.000 STEEL OVERHEAD SIGN TRUSS, 85 FT. SPAN EACH _________._____ _________._____ 1330 2501-8400172 TEMPORARY SHORING LUMP SUM LUMP SUM _________._____ 1340 2518-0000080 2.000 ITS HANDHOLE, 30x17x24 EACH _________._____ _________._____ 1350 2518-0000090 1.000 ITS HANDHOLE, 36x24x36 EACH _________._____ _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0007 TRAFFIC SIGN ITEMS - NHSX-030-5(314)--3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 1360 2518-0000150 3.000 ITS GROUND ROD EACH _________._____ _________._____ 1370 2518-0001200 632.000 ITS CONDUIT, HDPE, 2 INCH BORED LF _________._____ _________._____ 1380 2518-0002200 798.000 ITS CONDUIT, HDPE, 2 INCH PLOWED LF _________._____ _________._____ 1390 2518-0004200 16.000 ITS CONDUIT, RIGID STEEL, 2 INCH LF _________._____ _________._____ 1400 2518-0006004 3,618.000 XHHW COPPER WIRE, NO. 4 AWG LF _________._____ _________._____ 1410 2518-0006006 621.000 XHHW COPPER WIRE, NO. 6 AWG LF _________._____ _________._____ 1420 2518-0006015 97.000 ITS TRACER WIRE LF _________._____ _________._____ 1430 2518-0008300 97.000 FIBER OPTIC CABLE, INSTALL ONLY LF _________._____ _________._____ 1440 2518-0008322 2.000 ITS CIRCUIT BREAKER EACH _________._____ _________._____ 1450 2518-0008325 2.000 ITS TRANSFORMER EACH _________._____ _________._____ 1460 2518-0008400 FIBER OPTIC CABLE ACCEPTANCE TESTING LUMP SUM LUMP SUM _________._____ 1470 2524-6765010 1.000 REMOVE AND REINSTALL SIGN AS PER PLAN EACH _________._____ _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0007 TRAFFIC SIGN ITEMS - NHSX-030-5(314)--3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 1480 2524-6765210 1.000 REMOVAL OF TYPE A SIGN ASSEMBLY EACH _________._____ _________._____ 1490 2524-6765220 9.000 REMOVAL OF TYPE B SIGN ASSEMBLY EACH _________._____ _________._____ 1500 2524-9081275 4.000 CONCRETE FOOTING FOR BREAKAWAY SIGN POST, 2'-8" DIA. X 7'-6" EACH _________._____ _________._____ 1510 2524-9081290 6.000 CONCRETE FOOTING FOR BREAKAWAY SIGN POST, 2'-8" DIA. X 9'-0" EACH _________._____ _________._____ 1520 2524-9089100 11.000 DELINEATOR, RIGID - TYPE I EACH _________._____ _________._____ 1530 2524-9089110 4.000 DELINEATOR, RIGID - TYPE IA EACH _________._____ _________._____ 1540 2524-9089200 18.000 DELINEATOR, RIGID - TYPE II EACH _________._____ _________._____ 1550 2524-9210007 4.000 REFERENCE LOCATION SIGNS EACH _________._____ _________._____ 1560 2524-9276010 45.000 PERFORATED SQUARE STEEL TUBE POSTS LF _________._____ _________._____ 1570 2524-9276027 3.000 PERFORATED SQUARE STEEL TUBE POST ANCHOR, TRIANGULAR SLIP BASE ASSEMBLY EACH _________._____ _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0007 TRAFFIC SIGN ITEMS - NHSX-030-5(314)--3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 1580 2524-9281090 18.000 STEEL BREAKAWAY SIGN POSTS FOR TYPE A OR B SIGNS, W 6 X 9 LF _________._____ _________._____ 1590 2524-9281210 69.400 STEEL BREAKAWAY SIGN POSTS FOR TYPE A OR B SIGNS, W 8 X 21 LF _________._____ _________._____ 1600 2524-9281426 144.500 STEEL BREAKAWAY SIGN POSTS FOR TYPE A OR B SIGNS, W 12 X 26 LF _________._____ _________._____ 1610 2524-9325001 16.000 TYPE A SIGNS, SHEET ALUMINUM SF _________._____ _________._____ 1620 2524-9380001 1,553.000 TYPE B SIGNS, EXTRUDED ALUMINUM STRUCTURAL PANEL SF _________._____ _________._____ 1630 2526-8285040 CONSTRUCTION SURVEY, LOCATION SURVEY LUMP SUM LUMP SUM _________._____ 1640 2533-4980005 MOBILIZATION LUMP SUM LUMP SUM _________._____ 1650 2555-0000010 DELIVER AND STOCKPILE SALVAGED MATERIALS LUMP SUM LUMP SUM _________._____ 1660 2599-9999005 10.000 ('EACH' ITEM) Anchor Bolt Assembly, Install and Survey EACH _________._____ _________._____ 1670 2599-9999005 7.000 ('EACH' ITEM) Delineator, Gore EACH _________._____ _________._____ 1680 2599-9999005 2.000 ('EACH' ITEM) ITS TRANSFORMER BASE EACH _________._____ _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0007 TRAFFIC SIGN ITEMS - NHSX-030-5(314)--3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 1690 2599-9999005 2.000 ('EACH' ITEM) MASSH-400 Sign Post EACH _________._____ _________._____ 1700 2599-9999008 7,230.000 ('POUNDS' ITEM) Anchor Bolt Assembly, Furnish LB _________._____ _________._____ Section: 0007 Total: _________._____ Contracts and Specifications Bureau 9/8/2026 1:05 PM Proposal Schedule of Items Proposal ID: 85-0305-311 Call Order: 014 Letting Date: October 20, 2026 SECTION: 0008 LIGHTING ITEMS - NHSX-030-5(315)--3H-85 Proposal Line Number Item Number Item Description Item Quantity and Units Unit Price Bid Amount Dollars Cents Dollars Cents 1710 2401-6745356 10.000 REMOVAL OF CONCRETE FOOTINGS OF LIGHT POLES EACH _________._____ _________._____ 1720 2401-6745765 10.000 REMOVAL OF LIGHT POLES EACH _________._____ _________._____ 1730 2523-0000100 10.000 LIGHTING POLES EACH _________._____ _________._____ 1740 2523-0000200 3,480.000 ELECTRICAL CIRCUITS LF _________._____ _________._____ 1750 2523-0000310 2.000 HANDHOLES AND JUNCTION BOXES EACH _________._____ _________._____ 1760 2526-8285040 CONSTRUCTION SURVEY, LOCATION SURVEY LUMP SUM LUMP SUM _________._____ 1770 2528-8400157 3.000 TEMPORARY FLOODLIGHTING LUMINAIRE EACH _________._____ _________._____ 1780 2528-8445110 TRAFFIC CONTROL LUMP SUM LUMP SUM _________._____ 1790 2533-4980005 MOBILIZATION LUMP SUM LUMP SUM _________._____ 1800 2555-0000010 DELIVER AND STOCKPILE SALVAGED MATERIALS LUMP SUM LUMP SUM _________._____ 1810 2599-9999010 ('LUMP SUM' ITEM) DEMOLITION OF ELECTRIC CIRCUITS LUMP SUM LUMP SUM _________._____ Section: 0008 Total: _________._____ Total Bid: _________._____ DS-23011 (New) DEVELOPMENTAL SPECIFICATIONS FOR FLOATING SILT CURTAIN Effective Date October 17, 2023 THE STANDARD SPECIFICATIONS, SERIES 2023, ARE AMENDED BY THE FOLLOWING MODIFICATIONS AND ADDITIONS. THESE ARE DEVELOPMENTAL SPECIFICATIONS AND THEY PREVAIL OVER THOSE PUBLISHED IN THE STANDARD SPECIFICATIONS. 23011.01 DESCRIPTION. Floating Silt Curtains are temporary control measures used for containing suspended sediment in an area of open water. Open water is described as any perennial water course or water body with 6 inch (150 mm) or greater depth. Floating Silt Curtains consist of fabric fastened to a flotation carrier and weighted along the bottom edge. Two types of Floating Silt Curtains may be utilized: A. Floating Silt Curtain (Containment). Floating Silt Curtain (Containment) is intended to capture all sediment entering the water during construction activities and the sediment is to be removed with the floating silt curtain upon completion of the work. B. Floating Silt Curtain (Hanging). Floating Silt Curtain (Hanging) is intended to create a static water area isolated from the water course or water body. Sediment entering the static water area is isolated and settles out of suspension within the area of the floating silt curtain. 23011.02 MATERIALS. A. Floating Silt Curtains shall meet the following minimum requirements and manufacturer recommendations: Table DS-23011.02-1: Floating Silt Curtain Requirements Property Value Curtain Fabric Material Type Impermeable vinyl-coated nylon Mass Per Square Yard 22 oz. Grab Tensile Strength ASTM D 4632 * 500 lbs. Flotation 8 inch diameter marine quality expanded polystyrene Net Buoyancy, Per Foot 20 lbs. Top Load Carrying Components Fabric plus 5/16 inch galvanized steel cable 9100 lbs. minimum break strength Ballast, Lbs. Per Foot, Minimum 1.0 lbs./foot enclosed 5/16 inch galvanized chain Connection Between Sections Aluminum collar reinforced quick disconnects * Minimum average roll value. DS-23011, Page 2 of 3 B. Design connecting devices to prevent silt from permeating through the connection and at specified strength to prevent ripping out. 23011.03 CONSTRUCTION. A. General. 1. Construct Floating Silt Curtain as shown in the contract documents and to the expected water depth plus wave height. 2. On US Coast Guard regulated waters or other navigable waterways, furnish buoys to mark the ends and special areas for visibility. Place buoys as required for navigational purposes. 3. Floating Silt Curtain shall be installed adjacent to planned work area prior to soil disturbance. The curtain shall be installed along the complete work area which is planned to be disturbed and to points 20 feet beyond the limits of the area of disturbance and tied into the existing soil bank. 4. Floating Silt Curtain (Containment) installations will require both a containment floating silt curtain and a hanging floating silt curtain. Install the two floating silt curtains as shown in the contract documents with the containment silt curtain closest to shore and the hanging silt curtain 10 feet outside the containment silt curtain. 5. Do not discharge water pumped from the work site into an area of unrestrained open water. 6. Control surface drainage prior to entry into the water by installation of appropriate erosion control measures on land. B. Floating Silt Curtain (Containment). 1. Install Floating Silt Curtain (hanging) prior to installation of Floating Silt curtain (Containment). 2. Shape water body soil bank to enable installation of Floating Silt Curtain (Containment) as detailed in the contract documents. 3. Install Floating Silt Curtain (Containment). 4. Anchors shall include a chain having a minimum weight of 3.0 pounds per yard and anchor weights as needed to hold curtain down. 5. Inspect the containment floating silt curtain after heavy winds or major rain storms (1 inch) to check for damage and depth of silt on the bottom of the silt curtain. If 2 inches or more of silt is present on top of the silt curtain, remove the silt curtain and silt as described below and reinstall floating silt curtain. 6. Upon completion of the work or when clean-out of containment silt curtain is required, remove containment silt curtain. Dispose of collected silt offsite at an upland, non-wetland location or as approved by the Engineer. Following removal of containment curtain, the hanging curtain shall remain in place for a minimum of 48 hours after which it can be removed, provided all work in the area being protected is completed. C. Floating Silt Curtain (Hanging). 1. Anchors shall be a minimum of 60 pounds and located at a maximum spacing of 50 feet along curtain. DS-23011, Page 3 of 3 2. Hanging silt curtain shall remain in place for a minimum of 48 hours after completion of work activity to allow suspended sediment to settle out after which time the silt curtain can be removed. Remove curtain in a manner that will prevent re-suspension of silt into the water. 23011.04 METHOD OF MEASUREMENT. A. Floating Silt Curtain, of the type specified, will be measured by length in feet furnished and installed. B. Clean-out of Floating Silt Curtain (Containment) will be measured by length in feet removed, cleaned, and reinstalled (if necessary) each time cleaning is required. C. Maintenance of Floating Silt Curtain, when directed by the Engineer, will be measured in feet for sections of curtain requiring maintenance (typically 50 foot sections). 23011.05 BASIS OF PAYMENT. A. Payment for Floating Silt Curtain (Hanging) will be the contract unit price for the length in feet of hanging silt curtain furnished and installed. Payment is full compensation for labor, equipment, and materials necessary to construct, and remove hanging silt curtain. Upon satisfactory installation of hanging silt curtain, the Engineer may authorize partial payment not exceeding 80% of the quantity placed. Remaining quantity will be paid after Floating Silt Curtain is removed. B. Payment for Floating Silt Curtain (Containment) will be the contract unit price for the length in feet of containment silt curtain furnished and installed. Payment is full compensation for labor, equipment, and materials necessary to construct containment silt curtain. C. Payment for Clean-out of Floating Silt Curtain (Containment) will be the contract unit price for the length in feet of the Containment Silt Curtain removed each time cleaning is required. Payment is full compensation for labor and equipment necessary to remove and clean containment silt curtain, remove and dispose of collected silt, and reinstall containment silt curtain (if necessary). Clean-out of Floating Silt Curtain (Containment) will be paid to remove the containment silt curtain at the completion of the project. D. Payment for Maintenance of Floating Silt Curtain will be at the contract unit price per foot of floating

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Package Pages

Categorized By

llm

Package Fetched

https://secure.iowadot.gov/contracts/october_2026_letting/20OCT014.zip

Package Scope Docs

Package Manifest Only

View official postingOpens the original Iowa Department of Transportation listing in a new tab

Surety · through Light RFPprequal free · bid bond free · p&p 3%

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Most Iowa work asks for the two below, and the solicitation documents are where it’s stated. One prequalification covers both — on this bid and the next.

Bid BondUsually 5–10% of your bid

Due with your bid

FreeGet this one →

Performance & Payment BondUsually 100% of the contract

Due after award

Flat 3%Get this one →

$0, forever48-hr responseA-ratedSoft pull

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Source: Iowa Department of Transportation (solicitation 85-0305-311-B014), retrieved via a public procurement portal. View the official posting, and always confirm requirements and deadlines with the issuing agency.

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Government · Iowa

Structures — Story County, IA (Proposal 85-0305-311)

Iowa Department of TransportationIssuing agency·Iowa·via a public procurement portal

25days left

Due Oct 20, 2026·Posted Sep 22, 2026

Prequalify For BondingBonding Prequal

AI takeaways

The Iowa Department of Transportation is seeking bids for a bridge replacement and related roadway work on U.S. 30 in Story County, Iowa, including a pretensioned prestressed concrete beam bridge over the South Skunk River.
Bids are due on October 20, 2026, and the proposal guaranty is $750,000.00.
The project includes PCC pavement, new triple-box RCB culverts, traffic signs, lighting, and a bridge replacement with a 376'-0 x 60'-0 pretensioned prestressed concrete beam bridge.
The contract time includes a late start date of April 5, 2027, with 140 work days and liquidated damages of $2,000.00 per day for the overall site.
Federal Aid - Predetermined Wages are in effect for all projects.
Requirement: DBE Goal: 0.0%
Requirement: Proposal Guaranty: $750,000.00

Bonding: Bid Bond: $750,000.00
Set-asides: DBE
Term: 140 WORK DAYS
Method: Competitive Sealed Bid

These takeaways are AI-generated and may be incomplete or wrong. Always verify every detail against the official documents before you bid.

Want to know if you can be bonded for this project? Get prequalified.The bid asks for $750K — that’s Propeller’s credit tier (up to $3M). One free application, soft pull.

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A good guy letter to show a GC or agency

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Contact the buyer

Iowa DOT Office of Contracts

dot.contracts@iowadot.usEmail 515-239-1414Phone

Location:

Story County, Iowa

Open in Maps ↗

Solicitation

85-0305-311-B014

85-0305-311

Method

Competitive Sealed Bid

Duration

140 WORK DAYS

What this bid is asking for

AI-generated

Submit a sealed bid for Proposal ID 85-0305-311 by October 20, 2026.
Provide a proposal guaranty of $750,000.00 with the bid.
Perform bridge replacement, PCC pavement, RCB culvert construction, traffic sign installation, and lighting work on U.S. 30 in Story County, Iowa.
Comply with Federal Aid - Predetermined Wages and all applicable Iowa DOT standard specifications.

Requirements

From the documents

Bonding capacity: Bid Bond: $750,000.00Need a line this size? Get prequalified →

Posted Scope of Work

Project

Proposal ID: 85-0305-311
Bid Order: 014
County: Story
Work Type: Structures
Project Numbers: BRF-030-5(311)--38-85; NHSX-030-5(315)--3H-85; NHSX-030-5(314)--3H-85; NHSX-030-5(313)--3H-85; NHSX-030-5(312)--3H-85; NHSX-030-5(310)--3H-85

Bidding

Documents

Scope, read from the documentsAI-generated

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Documents

Download zip

20OCT014.zipZIP

Download

014_85-0305-310_efiles_(Road).zipZIP

Download

014_85-0305-314_eFiles_(Road).zipZIP

Download

014_85-0305-311_eFiles_(Bridge).zipZIP

Download

014_85-0305-312_eFiles_(Bridge).zipZIP

Download

Questions & answers

AI-generated

What is the due date for bids?

Bids for this proposal open on letting day (October 20, 2026).

What is the DBE goal for this project?

DBE Goal: 0.0%

What is the proposal guaranty amount?

Proposal Guaranty: $750,000.00

What is the contract duration?

The contract time includes 140 WORK DAYS for the overall site with a late start date of 04/05/2027.

Full source recordEvery field Iowa Department of Transportation published, untouched

Docs

County

STORY

Page Url

https://ia.iowadot.gov/contracts/biddocuments/October2026

Bid Order

014

Enriched

Yes

Projects

BRF-030-5(311)--38-85, NHSX-030-5(315)--3H-85, NHSX-030-5(314)--3H-85, NHSX-030-5(313)--3H-85, NHSX-030-5(312)--3H-85, NHSX-030-5(310)--3H-85

Proposal Id

85-0305-311

Letting Date

Oct 20, 2026

List Url Hint

ia.iowadot.gov/contracts/biddocuments

Package Text

Package Files

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Package Pages

Categorized By

llm

Package Fetched

https://secure.iowadot.gov/contracts/october_2026_letting/20OCT014.zip

Package Scope Docs

Package Manifest Only

View official postingOpens the original Iowa Department of Transportation listing in a new tab

Surety · through Light RFPprequal free · bid bond free · p&p 3%

Need a bond for this one? Get prequalified once.

Most Iowa work asks for the two below, and the solicitation documents are where it’s stated. One prequalification covers both — on this bid and the next.

Bid BondUsually 5–10% of your bid

Due with your bid

FreeGet this one →

Performance & Payment BondUsually 100% of the contract

Due after award

Flat 3%Get this one →

$0, forever48-hr responseA-ratedSoft pull

What’s a good guy letter?

A surety’s written statement that it expects to bond you up to a stated amount, subject to final underwriting. It’s what a GC or agency asks to see before they take your bid seriously.

Bonding Directory Get a free bid bond

Not the right RFP for you?

Open opportunities in the same trade and area, with time left to bid

See all Concrete bids →

Not finding it?Describe the work in your own words and we’ll search the whole site.Search with AI →

Prequalify For Bondingknow you’re bondable · no bond scramble Bid bond

Structures — Story County, IA (Proposal 85-0305-311)

What this bid is asking for

Requirements

Posted Scope of Work

Project

Bidding

Documents

More concrete bids in Iowa, weekly.

Documents

Sign up for a Light RFP account to download documents

Questions & answers

Need a bond for this one? Get prequalified once.

Not the right RFP for you?

Structures — Story County, IA (Proposal 85-0305-311)

What this bid is asking for

Requirements

Posted Scope of Work

Project

Bidding

Documents

More concrete bids in Iowa, weekly.

Documents

Sign up for a Light RFP account to download documents

Questions & answers

Need a bond for this one? Get prequalified once.

Not the right RFP for you?