US Bridges

FM over Gizzard Creek

Fair

Floyd County, Iowa · 095153601 · Structure no. 000000000154500

Built
1970
55 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete Continuous
Length
104 ft
3 main spans
Daily traffic
108
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Gizzard Creek is a concrete continuous slab carrying FM over Gizzard Creek in Floyd County, Iowa. It was built in 1970, so it is 55 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 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 108 vehicles a day, projected to reach 108 by 2044. The structure is 104 ft (31.7 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM
CrossesGizzard Creek
Location095153601
RouteCounty Highway 0
StateIowa
Coordinates43.00874, -92.56918
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 alignment7: Better than present minimum criteria
Operating rating55.3 US tons
Inventory rating33.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length104 ft (31.7 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 traffic108 (2022)
Projected traffic108 by 2044
Trucks0%
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$30,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Gizzard Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is FM over Gizzard 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 March 2024.

How much traffic does FM over Gizzard Creek carry?

About 108 vehicles per day (2022 count).

How long is FM over Gizzard Creek?

The structure is 104 ft (31.7 m) long with a longest span of 39 ft (11.9 m) and a deck 30 ft wide.

Who owns FM over Gizzard Creek?

It is owned by the County Highway Agency.