US Bridges

FM over Tributary to Middle 102

Fair

Taylor County, Iowa · 070332001 · Structure no. 000000000323551

Built
1984
41 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
88 ft
3 main spans
Daily traffic
390
2021 count
Owner
County
County Highway Agency

About this bridge

FM over Tributary to Middle 102 is a concrete continuous slab carrying FM over Tributary to Middle 102 in Taylor County, Iowa. It was built in 1984, so it is 41 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 390 vehicles a day, roughly 17% of them trucks, projected to reach 390 by 2043. The structure is 88 ft (26.8 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM
CrossesTributary to Middle 102
Location070332001
RouteCounty Highway 0
StateIowa
Coordinates40.85642, -94.6801
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.
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 protection7 GoodSome minor problems.
Last inspectionMay 2023
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 rating58.1 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length88 ft (26.8 m)
Longest span34 ft (10.4 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2021)
Projected traffic390 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Tributary to Middle 102 built?

It was built in 1984, making it 41 years old in 2025.

What condition is FM over Tributary to Middle 102 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 2023.

How much traffic does FM over Tributary to Middle 102 carry?

About 390 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is FM over Tributary to Middle 102?

The structure is 88 ft (26.8 m) long with a longest span of 34 ft (10.4 m) and a deck 33 ft wide.

Who owns FM over Tributary to Middle 102?

It is owned by the County Highway Agency.