US Bridges

Ia 139 over Elliot Creek

Good

Winneshiek County, Iowa · 1.5 Mi. N of SR A18 · Structure no. 000000000052730

Built
1954
71 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
830
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 139 over Elliot Creek is a concrete continuous culvert carrying Ia 139 over Elliot Creek in Winneshiek County, Iowa. It was built in 1954, so it is 71 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 830 vehicles a day, roughly 21% of them trucks, projected to reach 830 by 2044. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 29.8 mi (48 km).

CarriesIa 139
CrossesElliot Creek
Location1.5 Mi. N of SR A18
RouteState Highway 139
StateIowa
Coordinates43.47891, -92.00986
Functional classRural Major 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
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 traffic830 (2022)
Projected traffic830 by 2044
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 139 over Elliot Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is Ia 139 over Elliot 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 May 2024.

How much traffic does Ia 139 over Elliot Creek carry?

About 830 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is Ia 139 over Elliot Creek?

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

Who owns Ia 139 over Elliot Creek?

It is owned by the State Highway Agency.