US Bridges

FM over Indian Creek

Poor

Sac County, Iowa · 087362302 · Structure no. 000000000300060

Built
1969
56 years old
Condition
Poor
inspected August 2024
Type
Slab
Concrete Continuous
Length
103 ft
3 main spans
Daily traffic
938
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Indian Creek is a concrete continuous slab carrying FM over Indian Creek in Sac County, Iowa. It was built in 1969, so it is 56 years old, older 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 938 vehicles a day, roughly 12% of them trucks, projected to reach 938 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).

CarriesFM
CrossesIndian Creek
Location087362302
RouteCounty Highway 0
StateIowa
Coordinates42.32912, -95.01329
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 length103 ft (31.4 m)
Longest span39 ft (11.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic938 (2022)
Projected traffic938 by 2044
Trucks12%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$30,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Indian Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is FM over Indian Creek 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 August 2024.

How much traffic does FM over Indian Creek carry?

About 938 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is FM over Indian Creek?

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 over Indian Creek?

It is owned by the County Highway Agency.