US Bridges

Sylvan DR over Indian Creek

Good

Pottawattamie County, Iowa · 000000000 · Structure no. 000000000002681

Built
1988
37 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
33 ft
1 main span
Daily traffic
1,002
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sylvan DR over Indian Creek is a prestressed concrete tee beam carrying Sylvan DR over Indian Creek in Pottawattamie County, Iowa. It was built in 1988, so it is 37 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 1,002 vehicles a day, projected to reach 1,002 by 2043. The structure is 33 ft (10.1 m) long and 33 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSylvan DR
CrossesIndian Creek
Location000000000
RouteCity Street 0
StateIowa
Coordinates41.28439, -95.83612
Functional classUrban 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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length33 ft (10.1 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10.2 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,002 (2022)
Projected traffic1,002 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$235,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Sylvan DR over Indian Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Sylvan DR over Indian 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 July 2023.

How much traffic does Sylvan DR over Indian Creek carry?

About 1,002 vehicles per day (2022 count).

How long is Sylvan DR over Indian Creek?

The structure is 33 ft (10.1 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns Sylvan DR over Indian Creek?

It is owned by the City or Municipal Highway Agency.