US Bridges

FM 260th ST over Crain Creek

PoorPosted for load

Bremer County, Iowa · 091122801 · Structure no. 000000000078750

Built
1965
60 years old
Condition
Poor
inspected April 2024
Type
Slab
Concrete Continuous
Length
127 ft
3 main spans
Daily traffic
776
2022 count
Owner
County
County Highway Agency

About this bridge

FM 260th ST over Crain Creek is a concrete continuous slab carrying FM 260th ST over Crain Creek in Bremer County, Iowa. It was built in 1965, so it is 60 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 3 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. Its operating status is: posted for load restriction.

It carries about 776 vehicles a day, roughly 13% of them trucks, projected to reach 776 by 2044. The structure is 127 ft (38.7 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM 260th ST
CrossesCrain Creek
Location091122801
RouteCounty Highway 0
StateIowa
Coordinates42.67152, -92.26892
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
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 rating31.2 US tons
Inventory rating10.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length127 ft (38.7 m)
Longest span49 ft (14.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic776 (2022)
Projected traffic776 by 2044
Trucks13%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 260th ST over Crain Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is FM 260th ST over Crain 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 April 2024.

How much traffic does FM 260th ST over Crain Creek carry?

About 776 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is FM 260th ST over Crain Creek?

The structure is 127 ft (38.7 m) long with a longest span of 49 ft (14.9 m) and a deck 30 ft wide.

Who owns FM 260th ST over Crain Creek?

It is owned by the County Highway Agency.