US Bridges

FM over Sugar Creek

Poor

Henry County, Iowa · 073071402 · Structure no. 000000000181490

Built
1960
65 years old
Condition
Poor
inspected February 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
640
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Sugar Creek is a concrete culvert carrying FM over Sugar Creek in Henry County, Iowa. It was built in 1960, so it is 65 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 640 vehicles a day, roughly 20% of them trucks, projected to reach 640 by 2043. The structure is 23 ft (7 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesFM
CrossesSugar Creek
Location073071402
RouteCounty Highway 0
CountyHenry County
StateIowa
Coordinates41.13066, -91.63967
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 2023
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic640 (2022)
Projected traffic640 by 2043
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 over Sugar Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is FM over Sugar 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 February 2023.

How much traffic does FM over Sugar Creek carry?

About 640 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is FM over Sugar Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns FM over Sugar Creek?

It is owned by the County Highway Agency.