US Bridges

IRR FM over Branch of Richland Creek

Fair

Tama County, Iowa · 082153101 · Structure no. 000000000317151

Built
2002
23 years old
Condition
Fair
inspected September 2022
Type
Culvert
Concrete Continuous
Length
54 ft
3 main spans
Daily traffic
304
2022 count
Owner
County
County Highway Agency

About this bridge

IRR FM over Branch of Richland Creek is a concrete continuous culvert carrying IRR FM over Branch of Richland Creek in Tama County, Iowa. It was built in 2002, so it is 23 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 304 vehicles a day, roughly 18% of them trucks, projected to reach 304 by 2043. The structure is 54 ft (16.5 m) long. If it were closed, the detour would be 28 mi (45 km).

CarriesIRR FM
CrossesBranch of Richland Creek
Location082153101
RouteCounty Highway 0
StateIowa
Coordinates41.87688, -92.63828
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span17 ft (5.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic304 (2022)
Projected traffic304 by 2043
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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 IRR FM over Branch of Richland Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is IRR FM over Branch of Richland 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 2022.

How much traffic does IRR FM over Branch of Richland Creek carry?

About 304 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is IRR FM over Branch of Richland Creek?

The structure is 54 ft (16.5 m) long with a longest span of 17 ft (5.2 m).

Who owns IRR FM over Branch of Richland Creek?

It is owned by the County Highway Agency.