US Bridges

FM over Middle Nodaway River Br.

Fair

Adair County, Iowa · 076330502 · Structure no. 000000000057131

Built
1993
32 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Middle Nodaway River Br. is a prestressed concrete tee beam carrying FM over Middle Nodaway River Br. in Adair County, Iowa. It was built in 1993, so it is 32 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 45 vehicles a day, projected to reach 45 by 2044. The structure is 38 ft (11.6 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM
CrossesMiddle Nodaway River Br.
Location076330502
RouteCounty Highway 0
StateIowa
Coordinates41.41372, -94.68179
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65 US tons
Inventory rating36.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span35 ft (10.7 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic45 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Middle Nodaway River Br. built?

It was built in 1993, making it 32 years old in 2025.

What condition is FM over Middle Nodaway River Br. 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 May 2024.

How much traffic does FM over Middle Nodaway River Br. carry?

About 45 vehicles per day (2022 count).

How long is FM over Middle Nodaway River Br.?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.7 m) and a deck 25 ft wide.

Who owns FM over Middle Nodaway River Br.?

It is owned by the County Highway Agency.