US Bridges

Silver Ave over Small Stream

GoodPosted for load

Butler County, Iowa · 091151906 · Structure no. 000000000087461

Built
2013
12 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
58 ft
3 main spans
Daily traffic
11
2021 count
Owner
County
County Highway Agency

About this bridge

Silver Ave over Small Stream is a wood or timber stringer/multi-beam or girder carrying Silver Ave over Small Stream in Butler 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for other load-capacity restriction.

It carries about 11 vehicles a day, projected to reach 11 by 2043. The structure is 58 ft (17.7 m) long and 25 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSilver Ave
CrossesSmall Stream
Location091151906
RouteCounty Highway 0
CountyButler County
StateIowa
Coordinates42.67799, -92.66247
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25.5 US tons
Inventory rating21.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span19 ft (5.8 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2021)
Projected traffic11 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Silver Ave over Small Stream built?

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

What condition is Silver 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 April 2023.

How much traffic does Silver Ave over Small Stream carry?

About 11 vehicles per day (2021 count).

How long is Silver Ave over Small Stream?

The structure is 58 ft (17.7 m) long with a longest span of 19 ft (5.8 m) and a deck 25 ft wide.

Who owns Silver Ave over Small Stream?

It is owned by the County Highway Agency.