US Bridges

270th ST over Wapsipicon Rvr Overflow

Good

Bremer County, Iowa · 091113301 · Structure no. 000000000078591

Built
2023
2 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
23 ft
1 main span
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

270th ST over Wapsipicon Rvr Overflow is a wood or timber stringer/multi-beam or girder carrying 270th ST over Wapsipicon Rvr Overflow in Bremer County, Iowa. It was built in 2023, so it is 2 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 9 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 23 ft (7 m) long and 24 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
Carries270th ST
CrossesWapsipicon Rvr Overflow
Location091113301
RouteCounty Highway 0
CountyBremer County
StateIowa
Coordinates42.65659, -92.15927
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating42.4 US tons
Inventory rating29.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length23 ft (7 m)
Longest span22 ft (6.7 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 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 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 270th ST over Wapsipicon Rvr Overflow built?

It was built in 2023, making it 2 years old in 2025.

What condition is 270th ST over Wapsipicon Rvr Overflow 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 2024.

How much traffic does 270th ST over Wapsipicon Rvr Overflow carry?

About 11 vehicles per day (2022 count).

How long is 270th ST over Wapsipicon Rvr Overflow?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.7 m) and a deck 24 ft wide.

Who owns 270th ST over Wapsipicon Rvr Overflow?

It is owned by the County Highway Agency.