US Bridges

Local over Branch Big Slough Creek

Fair

Muscatine County, Iowa · 078043004 · Structure no. 000000000258481

Built
1985
40 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Branch Big Slough Creek is a concrete continuous culvert carrying Local over Branch Big Slough Creek in Muscatine County, Iowa. It was built in 1985, so it is 40 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 45 vehicles a day, projected to reach 45 by 2043. The structure is 23 ft (7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLocal
CrossesBranch Big Slough Creek
Location078043004
RouteCounty Highway 0
CountyMuscatine County
StateIowa
Coordinates41.53425, -91.36727
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating34 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic45 by 2043
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$30,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Branch Big Slough Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Local over Branch Big Slough Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does Local over Branch Big Slough Creek carry?

About 45 vehicles per day (2022 count).

How long is Local over Branch Big Slough Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns Local over Branch Big Slough Creek?

It is owned by the County Highway Agency.