US Bridges

FM over Walnut Creek

Good

Appanoose County, Iowa · 069181904 · Structure no. 000000000065461

Built
1995
30 years old
Condition
Good
inspected October 2020
Type
Stringer/Multi-beam or Girder
Steel
Length
79 ft
1 main span
Daily traffic
70
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Walnut Creek is a steel stringer/multi-beam or girder carrying FM over Walnut Creek in Appanoose County, Iowa. It was built in 1995, so it is 30 years old, younger 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 70 vehicles a day, projected to reach 70 by 2043. The structure is 79 ft (24.1 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesFM
CrossesWalnut Creek
Location069181904
RouteCounty Highway 0
StateIowa
Coordinates40.75564, -92.9827
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 inspectionOctober 2020
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating73.9 US tons
Inventory rating44.3 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length79 ft (24.1 m)
Longest span78 ft (23.8 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2022)
Projected traffic70 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Walnut Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is FM over Walnut 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 October 2020.

How much traffic does FM over Walnut Creek carry?

About 70 vehicles per day (2022 count).

How long is FM over Walnut Creek?

The structure is 79 ft (24.1 m) long with a longest span of 78 ft (23.8 m) and a deck 26 ft wide.

Who owns FM over Walnut Creek?

It is owned by the County Highway Agency.