US Bridges

Ia 149 over Branch Old Mans Creek

Fair

Iowa County, Iowa · 1.9 Mi. S of Jct. SR F46 · Structure no. 000000000029481

Built
1985
40 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
1,910
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 149 over Branch Old Mans Creek is a concrete continuous culvert carrying Ia 149 over Branch Old Mans Creek in Iowa County, Iowa. It was built in 1985, so it is 40 years old, younger 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 6 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 1,910 vehicles a day, roughly 11% of them trucks, projected to reach 1,910 by 2043. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesIa 149
CrossesBranch Old Mans Creek
Location1.9 Mi. S of Jct. SR F46
RouteState Highway 149
CountyIowa County
StateIowa
Coordinates41.63339, -92.00727
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating63.5 US tons
Inventory rating38 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 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 traffic1,910 (2022)
Projected traffic1,910 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 149 over Branch Old Mans Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Ia 149 over Branch Old Mans 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 December 2023.

How much traffic does Ia 149 over Branch Old Mans Creek carry?

About 1,910 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Ia 149 over Branch Old Mans Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns Ia 149 over Branch Old Mans Creek?

It is owned by the State Highway Agency.