US Bridges

260th ST over Creek

Good

Clinton County, Iowa · 081E53001 · Structure no. 000000000122681

Built
1940
85 years old, rebuilt 1998
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

260th ST over Creek is a concrete slab carrying 260th ST over Creek in Clinton County, Iowa. It was built in 1940 and reconstructed in 1998, so it is 85 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 35 vehicles a day, projected to reach 35 by 2044. The structure is 23 ft (7 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries260th ST
CrossesCreek
Location081E53001
RouteCounty Highway 0
StateIowa
Coordinates41.80109, -90.41852
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.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.5 US tons
Inventory rating43.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length23 ft (7 m)
Longest span20 ft (6.1 m)
Deck width23 ft (7 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)
Projected traffic35 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 260th ST over Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1998.

What condition is 260th ST over 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 June 2024.

How much traffic does 260th ST over Creek carry?

About 35 vehicles per day (2022 count).

How long is 260th ST over Creek?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 23 ft wide.

Who owns 260th ST over Creek?

It is owned by the County Highway Agency.