US Bridges

FM over Crabapple Creek

Poor

Montgomery County, Iowa · 073393501 · Structure no. 000000000256920

Built
1958
67 years old
Condition
Poor
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
103 ft
3 main spans
Daily traffic
199
2021 count
Owner
County
County Highway Agency

About this bridge

FM over Crabapple Creek is a prestressed concrete stringer/multi-beam or girder carrying FM over Crabapple Creek in Montgomery County, Iowa. It was built in 1958, so it is 67 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 199 vehicles a day, roughly 10% of them trucks, projected to reach 199 by 2043. The structure is 103 ft (31.4 m) long and 27 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesFM
CrossesCrabapple Creek
Location073393501
RouteCounty Highway 0
StateIowa
Coordinates41.08768, -95.30221
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 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 rating41.6 US tons
Inventory rating26.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length103 ft (31.4 m)
Longest span43 ft (13.1 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic199 (2021)
Projected traffic199 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Crabapple Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is FM over Crabapple 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 May 2023.

How much traffic does FM over Crabapple Creek carry?

About 199 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is FM over Crabapple Creek?

The structure is 103 ft (31.4 m) long with a longest span of 43 ft (13.1 m) and a deck 27 ft wide.

Who owns FM over Crabapple Creek?

It is owned by the County Highway Agency.