US Bridges

Timber Ave over Small Stream

Good

Franklin County, Iowa · 90192102 · Structure no. 000000000156311

Built
2020
5 years old
Condition
Good
inspected June 2024
Type
Culvert
Steel
Length
21 ft
2 main spans
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

Timber Ave over Small Stream is a steel culvert carrying Timber Ave over Small Stream in Franklin County, Iowa. It was built in 2020, so it is 5 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 11 vehicles a day, projected to reach 11 by 2044. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTimber Ave
CrossesSmall Stream
Location90192102
RouteCounty Highway 0
CountyFranklin County
StateIowa
Coordinates42.59034, -93.10542
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 by 2044
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

OwnerCounty Highway Agency
Maintained byCounty 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 Timber Ave over Small Stream built?

It was built in 2020, making it 5 years old in 2025.

What condition is Timber Ave 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 June 2024.

How much traffic does Timber Ave over Small Stream carry?

About 11 vehicles per day (2022 count).

How long is Timber Ave over Small Stream?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns Timber Ave over Small Stream?

It is owned by the County Highway Agency.