US Bridges

Elmtree Road over Keg Creek

Good

Pottawattamie County, Iowa · 075422701 · Structure no. 000000000286601

Built
2001
24 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
204 ft
3 main spans
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

Elmtree Road over Keg Creek is a prestressed concrete stringer/multi-beam or girder carrying Elmtree Road over Keg Creek in Pottawattamie County, Iowa. It was built in 2001, so it is 24 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 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 15 vehicles a day, roughly 20% of them trucks, projected to reach 15 by 2043. The structure is 204 ft (62.2 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesElmtree Road
CrossesKeg Creek
Location075422701
RouteCounty Highway 0
StateIowa
Coordinates41.27525, -95.66601
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.4 US tons
Inventory rating41.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length204 ft (62.2 m)
Longest span72 ft (21.9 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 by 2043
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Elmtree Road over Keg Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is Elmtree Road over Keg 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 2024.

How much traffic does Elmtree Road over Keg Creek carry?

About 15 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Elmtree Road over Keg Creek?

The structure is 204 ft (62.2 m) long with a longest span of 72 ft (21.9 m) and a deck 27 ft wide.

Who owns Elmtree Road over Keg Creek?

It is owned by the County Highway Agency.