US Bridges

FM over North Avery Creek

Fair

Wapello County, Iowa · 073152604 · Structure no. 000000000332485

Built
1981
44 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
204 ft
3 main spans
Daily traffic
470
2022 count
Owner
County
County Highway Agency

About this bridge

FM over North Avery Creek is a steel continuous stringer/multi-beam or girder carrying FM over North Avery Creek in Wapello County, Iowa. It was built in 1981, so it is 44 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 5 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 470 vehicles a day, roughly 18% of them trucks, projected to reach 470 by 2044. The structure is 204 ft (62.2 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesFM
CrossesNorth Avery Creek
Location073152604
RouteCounty Highway 0
StateIowa
Coordinates41.09281, -92.55897
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50.4 US tons
Inventory rating32.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length204 ft (62.2 m)
Longest span78 ft (23.8 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic470 (2022)
Projected traffic470 by 2044
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 North Avery Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is FM over North Avery 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 May 2024.

How much traffic does FM over North Avery Creek carry?

About 470 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is FM over North Avery Creek?

The structure is 204 ft (62.2 m) long with a longest span of 78 ft (23.8 m) and a deck 33 ft wide.

Who owns FM over North Avery Creek?

It is owned by the County Highway Agency.