US Bridges

SW Ramp over Little Bear Creek

Fair

Iowa County, Iowa · 0.1 Mi. W of Jct. SR V38 · Structure no. 000000000603460

Built
1963
62 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
160
2022 count
Owner
State
State Highway Agency

About this bridge

SW Ramp over Little Bear Creek is a concrete continuous culvert carrying SW Ramp over Little Bear Creek in Iowa County, Iowa. It was built in 1963, so it is 62 years old, older 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 160 vehicles a day, roughly 18% of them trucks, projected to reach 160 by 2044. The structure is 23 ft (7 m) long.

CarriesSW Ramp
CrossesLittle Bear Creek
Location0.1 Mi. W of Jct. SR V38
RouteInterstate 80
StateIowa
Coordinates41.695, -92.28149
Functional classRural Principal Arterial - Interstate

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.6 US tons
Inventory rating45.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 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 traffic160 (2022)
Projected traffic160 by 2044
Trucks18%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 SW Ramp over Little Bear Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is SW Ramp over Little Bear 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 August 2024.

How much traffic does SW Ramp over Little Bear Creek carry?

About 160 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is SW Ramp over Little Bear Creek?

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

Who owns SW Ramp over Little Bear Creek?

It is owned by the State Highway Agency.