US Bridges

Easton Ave over Dry Run Creek

FairPosted for load

Black Hawk County, Iowa · City Bridge No. 4 · Structure no. 000000000011810

Built
1958
67 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
1,244
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Easton Ave over Dry Run Creek is a concrete slab carrying Easton Ave over Dry Run Creek in Black Hawk County, Iowa. It was built in 1958, so it is 67 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,244 vehicles a day, projected to reach 1,244 by 2043. The structure is 32 ft (9.8 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesEaston Ave
CrossesDry Run Creek
LocationCity Bridge No. 4
RouteCity Street 0
CountyBlack Hawk County
StateIowa
Coordinates42.47303, -92.34331
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating11.9 US tons
Inventory rating0 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width37 ft (11.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,244 (2022)
Projected traffic1,244 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Easton Ave over Dry Run Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is Easton Ave over Dry 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 June 2023.

How much traffic does Easton Ave over Dry Run Creek carry?

About 1,244 vehicles per day (2022 count).

How long is Easton Ave over Dry Run Creek?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 37 ft wide.

Who owns Easton Ave over Dry Run Creek?

It is owned by the City or Municipal Highway Agency.