US Bridges

FM 100th Ave over Br Ocheyedan R

Fair

Clay County, Iowa · 096380602 · Structure no. 000000000117000

Built
1967
58 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete Continuous
Length
103 ft
3 main spans
Daily traffic
359
2022 count
Owner
County
County Highway Agency

About this bridge

FM 100th Ave over Br Ocheyedan R is a concrete continuous slab carrying FM 100th Ave over Br Ocheyedan R in Clay County, Iowa. It was built in 1967, so it is 58 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.

It carries about 359 vehicles a day, roughly 30% of them trucks, projected to reach 359 by 2044. The structure is 103 ft (31.4 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFM 100th Ave
CrossesBr Ocheyedan R
Location096380602
RouteCounty Highway 0
CountyClay County
StateIowa
Coordinates43.16468, -95.38788
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.1 US tons
Inventory rating33.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length103 ft (31.4 m)
Longest span39 ft (11.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic359 (2022)
Projected traffic359 by 2044
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 100th Ave over Br Ocheyedan R built?

It was built in 1967, making it 58 years old in 2025.

What condition is FM 100th Ave over Br Ocheyedan R 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 December 2024.

How much traffic does FM 100th Ave over Br Ocheyedan R carry?

About 359 vehicles per day (2022 count), of which roughly 30% are trucks.

How long is FM 100th Ave over Br Ocheyedan R?

The structure is 103 ft (31.4 m) long with a longest span of 39 ft (11.9 m) and a deck 30 ft wide.

Who owns FM 100th Ave over Br Ocheyedan R?

It is owned by the County Highway Agency.