US Bridges

Hess Road over Drainage

Fair

Black Hawk County, Iowa · City Culvert No. 54C · Structure no. 000000000504355

Built
1992
33 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
60 ft
4 main spans
Daily traffic
4,635
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Hess Road over Drainage is a concrete continuous culvert carrying Hess Road over Drainage in Black Hawk County, Iowa. It was built in 1992, so it is 33 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 4,635 vehicles a day, projected to reach 4,635 by 2043. The structure is 60 ft (18.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHess Road
CrossesDrainage
LocationCity Culvert No. 54C
RouteCity Street 0
CountyBlack Hawk County
StateIowa
Coordinates42.45752, -92.31637
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.6 US tons
Inventory rating46.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,635 (2022)
Projected traffic4,635 by 2043
Trucks0%
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

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 Hess Road over Drainage built?

It was built in 1992, making it 33 years old in 2025.

What condition is Hess Road over Drainage 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 Hess Road over Drainage carry?

About 4,635 vehicles per day (2022 count).

How long is Hess Road over Drainage?

The structure is 60 ft (18.3 m) long with a longest span of 14 ft (4.3 m).

Who owns Hess Road over Drainage?

It is owned by the City or Municipal Highway Agency.