US Bridges

FM over West Nodaway Trib

FairPosted for load

Montgomery County, Iowa · 073363306 · Structure no. 000000000256220

Built
1961
64 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
102 ft
3 main spans
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

FM over West Nodaway Trib is a concrete continuous slab carrying FM over West Nodaway Trib in Montgomery County, Iowa. It was built in 1961, so it is 64 years old, older 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. Its operating status is: posted for load restriction.

It carries about 11 vehicles a day, projected to reach 11 by 2044. The structure is 102 ft (31.1 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFM
CrossesWest Nodaway Trib
Location073363306
RouteCounty Highway 0
CountyMontgomery County
StateIowa
Coordinates41.07322, -95.00403
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.6 US tons
Inventory rating15.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length102 ft (31.1 m)
Longest span39 ft (11.9 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over West Nodaway Trib built?

It was built in 1961, making it 64 years old in 2025.

What condition is FM over West Nodaway Trib 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 June 2024.

How much traffic does FM over West Nodaway Trib carry?

About 11 vehicles per day (2022 count).

How long is FM over West Nodaway Trib?

The structure is 102 ft (31.1 m) long with a longest span of 39 ft (11.9 m) and a deck 22 ft wide.

Who owns FM over West Nodaway Trib?

It is owned by the County Highway Agency.