US Bridges

125th Street over Deep Creek

Good

Clinton County, Iowa · 083E51703 · Structure no. 000000000125511

Built
1977
48 years old
Condition
Good
inspected January 2025
Type
Slab
Concrete Continuous
Length
160 ft
5 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

125th Street over Deep Creek is a concrete continuous slab carrying 125th Street over Deep Creek in Clinton County, Iowa. It was built in 1977, so it is 48 years old, older 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 100 vehicles a day, projected to reach 100 by 2045. The structure is 160 ft (48.8 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries125th Street
CrossesDeep Creek
Location083E51703
RouteCounty Highway 0
StateIowa
Coordinates41.99686, -90.40438
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 48 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 alignment8: Equal to present desirable criteria
Operating rating79.9 US tons
Inventory rating36.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span34 ft (10.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic100 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 125th Street over Deep Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is 125th Street over Deep 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 January 2025.

How much traffic does 125th Street over Deep Creek carry?

About 100 vehicles per day (2022 count).

How long is 125th Street over Deep Creek?

The structure is 160 ft (48.8 m) long with a longest span of 34 ft (10.4 m) and a deck 32 ft wide.

Who owns 125th Street over Deep Creek?

It is owned by the County Highway Agency.