US Bridges

W Eagle RD over Rock Creek

Fair

Black Hawk County, Iowa · 87-14-24-01-10 · Structure no. 000000000074691

Built
2005
20 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
471
2022 count
Owner
County
County Highway Agency

About this bridge

W Eagle RD over Rock Creek is a concrete continuous slab carrying W Eagle RD over Rock Creek in Black Hawk County, Iowa. It was built in 2005, so it is 20 years old, younger 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 471 vehicles a day, roughly 15% of them trucks, projected to reach 471 by 2043. The structure is 90 ft (27.4 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesW Eagle RD
CrossesRock Creek
Location87-14-24-01-10
RouteCounty Highway 0
CountyBlack Hawk County
StateIowa
Coordinates42.34084, -92.42698
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating83.7 US tons
Inventory rating50 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span34 ft (10.4 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic471 (2022)
Projected traffic471 by 2043
Trucks15%
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 W Eagle RD over Rock Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is W Eagle RD over Rock 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 2023.

How much traffic does W Eagle RD over Rock Creek carry?

About 471 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is W Eagle RD over Rock Creek?

The structure is 90 ft (27.4 m) long with a longest span of 34 ft (10.4 m) and a deck 33 ft wide.

Who owns W Eagle RD over Rock Creek?

It is owned by the County Highway Agency.