US Bridges

FM over Trib S Fork English Rvr

Fair

Keokuk County, Iowa · 077121504 · Structure no. 000000000213101

Built
1987
38 years old
Condition
Fair
inspected March 2022
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
460
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Trib S Fork English Rvr is a concrete continuous culvert carrying FM over Trib S Fork English Rvr in Keokuk 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 fair condition with a lowest component rating of 6 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 460 vehicles a day, roughly 18% of them trucks, projected to reach 460 by 2043. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFM
CrossesTrib S Fork English Rvr
Location077121504
RouteCounty Highway 0
CountyKeokuk County
StateIowa
Coordinates41.47198, -92.23944
Functional classRural Major Collector

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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.2 US tons
Inventory rating34.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 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 traffic460 (2022)
Projected traffic460 by 2043
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 FM over Trib S Fork English Rvr built?

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

What condition is FM over Trib S Fork English Rvr 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 March 2022.

How much traffic does FM over Trib S Fork English Rvr carry?

About 460 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is FM over Trib S Fork English Rvr?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns FM over Trib S Fork English Rvr?

It is owned by the County Highway Agency.