Local over Dry Creek

Good

Benton County, Iowa · 083091502 · Structure no. 000000000070931

Built: 1987; 38 years old
Condition: Good; inspected April 2023
Type: Slab; Concrete Continuous
Length: 90 ft; 3 main spans
Daily traffic: 49; 2022 count
Owner: County; County Highway Agency

About this bridge

Local over Dry Creek is a concrete continuous slab carrying Local over Dry Creek in Benton County, Iowa. It was built in 1987, so it is 38 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 49 vehicles a day, projected to reach 49 by 2043. The structure is 90 ft (27.4 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesLocal

CrossesDry Creek

Location083091502

RouteCounty Highway 0

CountyBenton County

StateIowa

Coordinates41.993, -91.89255

Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionApril 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation7: Better than present minimum criteria

Deck geometry7: Better than present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating58.1 US tons

Inventory rating35.1 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadH 20

Structure length90 ft (27.4 m)

Longest span34 ft (10.4 m)

Deck width33 ft (10.1 m)

Roadway width30 ft (9.1 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49 (2022)

Projected traffic49 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed1.9 mi (3 km)

TollOn a free road

National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency

Maintained byCounty Highway Agency

Historic statusNot eligible for the National Register of Historic Places

Work proposedOther structural work, including hydraulic replacements

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Dry Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Local over Dry Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Local over Dry Creek carry?

About 49 vehicles per day (2022 count).

How long is Local over Dry Creek?

The structure is 90 ft (27.4 m) long with a longest span of 34 ft (10.4 m) and a deck 33 ft wide.

Who owns Local over Dry Creek?

It is owned by the County Highway Agency.