US Bridges

8th ST NW over Small Stream

Good

Franklin County, Iowa · 0922033 · Structure no. 000000000505255

Built
2013
12 years old
Condition
Good
inspected May 2024
Type
Culvert
Other
Length
21 ft
3 main spans
Daily traffic
349
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

8th ST NW over Small Stream is a other culvert carrying 8th ST NW over Small Stream in Franklin County, Iowa. It was built in 2013, so it is 12 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 349 vehicles a day, projected to reach 349 by 2044. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries8th ST NW
CrossesSmall Stream
Location0922033
RouteCity Street 0
CountyFranklin County
StateIowa
Coordinates42.74397, -93.21719
Functional classRural 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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2024
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 rating60 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialOther
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length21 ft (6.4 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic349 (2022)
Projected traffic349 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 8th ST NW over Small Stream built?

It was built in 2013, making it 12 years old in 2025.

What condition is 8th ST NW 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 May 2024.

How much traffic does 8th ST NW over Small Stream carry?

About 349 vehicles per day (2022 count).

How long is 8th ST NW over Small Stream?

The structure is 21 ft (6.4 m) long with a longest span of 5 ft (1.5 m).

Who owns 8th ST NW over Small Stream?

It is owned by the City or Municipal Highway Agency.