US Bridges

14th Ave over Small Stream

Fair

Black Hawk County, Iowa · 000000000 · Structure no. 000000000005545

Built
1968
57 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
387
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

14th Ave over Small Stream is a prestressed concrete tee beam carrying 14th Ave over Small Stream in Black Hawk County, Iowa. It was built in 1968, so it is 57 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 387 vehicles a day, projected to reach 387 by 2043. The structure is 31 ft (9.4 m) long and 47 ft wide.

Location

Open in Google Maps
Carries14th Ave
CrossesSmall Stream
Location000000000
RouteCity Street 0
CountyBlack Hawk County
StateIowa
Coordinates42.41618, -92.21385
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating30.8 US tons
Inventory rating18.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width47 ft (14.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic387 (2022)
Projected traffic387 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 14th Ave over Small Stream built?

It was built in 1968, making it 57 years old in 2025.

What condition is 14th Ave over Small Stream 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 April 2023.

How much traffic does 14th Ave over Small Stream carry?

About 387 vehicles per day (2022 count).

How long is 14th Ave over Small Stream?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 47 ft wide.

Who owns 14th Ave over Small Stream?

It is owned by the City or Municipal Highway Agency.