US Bridges

Forest Ave over Small Stream

Fair

Butler County, Iowa · 092181202 · Structure no. 000000000088961

Built
2012
13 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
57 ft
3 main spans
Daily traffic
21
2022 count
Owner
County
County Highway Agency

About this bridge

Forest Ave over Small Stream is a wood or timber stringer/multi-beam or girder carrying Forest Ave over Small Stream in Butler County, Iowa. It was built in 2012, so it is 13 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 21 vehicles a day, projected to reach 21 by 2044. The structure is 57 ft (17.4 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesForest Ave
CrossesSmall Stream
Location092181202
RouteCounty Highway 0
CountyButler County
StateIowa
Coordinates42.79374, -92.92686
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating25.7 US tons
Inventory rating19.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2022)
Projected traffic21 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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$70,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Forest Ave over Small Stream built?

It was built in 2012, making it 13 years old in 2025.

What condition is Forest 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 2024.

How much traffic does Forest Ave over Small Stream carry?

About 21 vehicles per day (2022 count).

How long is Forest Ave over Small Stream?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 24 ft wide.

Who owns Forest Ave over Small Stream?

It is owned by the County Highway Agency.