US Bridges

B 66 (290th St) over Wapsipinicon

Good

Chickasaw County, Iowa · 094132501 · Structure no. 000000000110681

Built
2013
12 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
70 ft
3 main spans
Daily traffic
49
2022 count
Owner
County
County Highway Agency

About this bridge

B 66 (290th St) over Wapsipinicon is a wood or timber stringer/multi-beam or girder carrying B 66 (290th St) over Wapsipinicon in Chickasaw 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.

It carries about 49 vehicles a day, projected to reach 49 by 2043. The structure is 70 ft (21.3 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesB 66 (290th St)
CrossesWapsipinicon
Location094132501
RouteCounty Highway 0
CountyChickasaw County
StateIowa
Coordinates42.93624, -92.32483
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.7 US tons
Inventory rating33.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length70 ft (21.3 m)
Longest span22 ft (6.7 m)
Deck width23 ft (6.9 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49 (2022)
Projected traffic49 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was B 66 (290th St) over Wapsipinicon built?

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

What condition is B 66 (290th St) over Wapsipinicon 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 B 66 (290th St) over Wapsipinicon carry?

About 49 vehicles per day (2022 count).

How long is B 66 (290th St) over Wapsipinicon?

The structure is 70 ft (21.3 m) long with a longest span of 22 ft (6.7 m) and a deck 23 ft wide.

Who owns B 66 (290th St) over Wapsipinicon?

It is owned by the County Highway Agency.