US Bridges

FM over Indian Creek

Fair

Montgomery County, Iowa · 073390302 · Structure no. 000000000256710

Built
1957
68 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
104 ft
3 main spans
Daily traffic
45
2021 count
Owner
County
County Highway Agency

About this bridge

FM over Indian Creek is a prestressed concrete stringer/multi-beam or girder carrying FM over Indian Creek in Montgomery County, Iowa. It was built in 1957, so it is 68 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 45 vehicles a day, projected to reach 45 by 2043. The structure is 104 ft (31.7 m) long and 23 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFM
CrossesIndian Creek
Location073390302
RouteCounty Highway 0
CountyMontgomery County
StateIowa
Coordinates41.15663, -95.3276
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
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 evaluation6: Equal to present minimum criteria
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 rating54.5 US tons
Inventory rating27.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length104 ft (31.7 m)
Longest span43 ft (13.1 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2021)
Projected traffic45 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Indian Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is FM over Indian 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 May 2023.

How much traffic does FM over Indian Creek carry?

About 45 vehicles per day (2021 count).

How long is FM over Indian Creek?

The structure is 104 ft (31.7 m) long with a longest span of 43 ft (13.1 m) and a deck 23 ft wide.

Who owns FM over Indian Creek?

It is owned by the County Highway Agency.