US Bridges

FM over Blue Creek

Good

Benton County, Iowa · 086092602 · Structure no. 000000000073101

Built
2016
9 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
69
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Blue Creek is a concrete continuous culvert carrying FM over Blue Creek in Benton County, Iowa. It was built in 2016, so it is 9 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 69 vehicles a day, projected to reach 69 by 2043. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesFM
CrossesBlue Creek
Location086092602
RouteCounty Highway 0
StateIowa
Coordinates42.23784, -91.87116
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating38.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic69 (2022)
Projected traffic69 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM over Blue Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is FM over Blue Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does FM over Blue Creek carry?

About 69 vehicles per day (2022 count).

How long is FM over Blue Creek?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).

Who owns FM over Blue Creek?

It is owned by the County Highway Agency.