US Bridges

S 12th Ave West over Small Stream

Good

Jasper County, Iowa · 000000000 · Structure no. 000000000503911

Built
2016
9 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
240
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

S 12th Ave West over Small Stream is a concrete continuous culvert carrying S 12th Ave West over Small Stream in Jasper County, Iowa. It was built in 2016, so it is 9 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 240 vehicles a day, projected to reach 240 by 2043. The structure is 25 ft (7.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesS 12th Ave West
CrossesSmall Stream
Location000000000
RouteCity Street 0
CountyJasper County
StateIowa
Coordinates41.68832, -93.08269
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating44.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length25 ft (7.5 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 traffic240 (2022)
Projected traffic240 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 S 12th Ave West over Small Stream built?

It was built in 2016, making it 9 years old in 2025.

What condition is S 12th Ave West over Small Stream in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does S 12th Ave West over Small Stream carry?

About 240 vehicles per day (2022 count).

How long is S 12th Ave West over Small Stream?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m).

Who owns S 12th Ave West over Small Stream?

It is owned by the City or Municipal Highway Agency.