US Bridges

E.Orange RD over Sink Creek

Fair

Black Hawk County, Iowa · City Culvert No. 45C · Structure no. 000000000504055

Built
1988
37 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
2,777
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

E.Orange RD over Sink Creek is a concrete culvert carrying E.Orange RD over Sink Creek in Black Hawk 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 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 2,777 vehicles a day, projected to reach 2,777 by 2043. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesE.Orange RD
CrossesSink Creek
LocationCity Culvert No. 45C
RouteCity Street 0
CountyBlack Hawk County
StateIowa
Coordinates42.42854, -92.33535
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating41.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,777 (2022)
Projected traffic2,777 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was E.Orange RD over Sink Creek built?

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

What condition is E.Orange RD over Sink 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 E.Orange RD over Sink Creek carry?

About 2,777 vehicles per day (2022 count).

How long is E.Orange RD over Sink Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns E.Orange RD over Sink Creek?

It is owned by the City or Municipal Highway Agency.