US Bridges

Birch Ave over Small Stream

Good

Butler County, Iowa · 091180502 · Structure no. 000000000088001

Built
2014
11 years old
Condition
Good
inspected March 2023
Type
Tee Beam
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
41
2022 count
Owner
County
County Highway Agency

About this bridge

Birch Ave over Small Stream is a prestressed concrete tee beam carrying Birch Ave over Small Stream in Butler County, Iowa. It was built in 2014, so it is 11 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 41 vehicles a day, projected to reach 41 by 2043. The structure is 48 ft (14.6 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesBirch Ave
CrossesSmall Stream
Location091180502
RouteCounty Highway 0
CountyButler County
StateIowa
Coordinates42.72063, -93.00564
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length48 ft (14.6 m)
Longest span45 ft (13.7 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2022)
Projected traffic41 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Birch Ave over Small Stream built?

It was built in 2014, making it 11 years old in 2025.

What condition is Birch 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 March 2023.

How much traffic does Birch Ave over Small Stream carry?

About 41 vehicles per day (2022 count).

How long is Birch Ave over Small Stream?

The structure is 48 ft (14.6 m) long with a longest span of 45 ft (13.7 m) and a deck 28 ft wide.

Who owns Birch Ave over Small Stream?

It is owned by the County Highway Agency.