US Bridges

S Elk Run RD over Elk Run Creek

Fair

Black Hawk County, Iowa · 89-12-34-04 · Structure no. 000000000075831

Built
1971
54 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
176 ft
3 main spans
Daily traffic
3,574
2022 count
Owner
County
County Highway Agency

About this bridge

S Elk Run RD over Elk Run Creek is a prestressed concrete stringer/multi-beam or girder carrying S Elk Run RD over Elk Run Creek in Black Hawk County, Iowa. It was built in 1971, so it is 54 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 3,574 vehicles a day, roughly 26% of them trucks, projected to reach 3,574 by 2044. The structure is 176 ft (53.6 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS Elk Run RD
CrossesElk Run Creek
Location89-12-34-04
RouteCounty Highway 0
StateIowa
Coordinates42.47391, -92.25849
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
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 alignment7: Better than present minimum criteria
Operating rating73.6 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length176 ft (53.6 m)
Longest span65 ft (19.8 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,574 (2022)
Projected traffic3,574 by 2044
Trucks26%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S Elk Run RD over Elk Run Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is S Elk Run RD over Elk Run 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 November 2024.

How much traffic does S Elk Run RD over Elk Run Creek carry?

About 3,574 vehicles per day (2022 count), of which roughly 26% are trucks.

How long is S Elk Run RD over Elk Run Creek?

The structure is 176 ft (53.6 m) long with a longest span of 65 ft (19.8 m) and a deck 32 ft wide.

Who owns S Elk Run RD over Elk Run Creek?

It is owned by the County Highway Agency.