US Bridges

FM over Branch Yellow River

Poor

Allamakee County, Iowa · 096051305 · Structure no. 000000000061321

Built
1999
26 years old
Condition
Poor
inspected May 2024
Type
Slab
Concrete Continuous
Length
91 ft
3 main spans
Daily traffic
933
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Branch Yellow River is a concrete continuous slab carrying FM over Branch Yellow River in Allamakee County, Iowa. It was built in 1999, so it is 26 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 933 vehicles a day, roughly 27% of them trucks, projected to reach 933 by 2044. The structure is 91 ft (27.7 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFM
CrossesBranch Yellow River
Location096051305
RouteCounty Highway 0
StateIowa
Coordinates43.13059, -91.38225
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
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 evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating94 US tons
Inventory rating56.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length91 ft (27.7 m)
Longest span34 ft (10.4 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic933 (2022)
Projected traffic933 by 2044
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 over Branch Yellow River built?

It was built in 1999, making it 26 years old in 2025.

What condition is FM over Branch Yellow River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does FM over Branch Yellow River carry?

About 933 vehicles per day (2022 count), of which roughly 27% are trucks.

How long is FM over Branch Yellow River?

The structure is 91 ft (27.7 m) long with a longest span of 34 ft (10.4 m) and a deck 33 ft wide.

Who owns FM over Branch Yellow River?

It is owned by the County Highway Agency.