US Bridges

County Rd. X-75 over Wapsipinicon River

Good

Jones County, Iowa · 083011806 · Structure no. 000000000362630

Built
1985
40 years old
Condition
Good
inspected February 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
550 ft
6 main spans
Daily traffic
226
2022 count
Owner
County
County Highway Agency

About this bridge

County Rd. X-75 over Wapsipinicon River is a prestressed concrete stringer/multi-beam or girder carrying County Rd. X-75 over Wapsipinicon River in Jones County, Iowa. It was built in 1985, so it is 40 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 226 vehicles a day, roughly 21% of them trucks, projected to reach 226 by 2043. The structure is 550 ft (167.5 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCounty Rd. X-75
CrossesWapsipinicon River
Location083011806
RouteCounty Highway 0
CountyJones County
StateIowa
Coordinates41.99062, -91.00962
Functional classRural Minor Collector

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 inspectionFebruary 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length550 ft (167.5 m)
Longest span96 ft (29.4 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic226 (2022)
Projected traffic226 by 2043
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Rd. X-75 over Wapsipinicon River built?

It was built in 1985, making it 40 years old in 2025.

What condition is County Rd. X-75 over Wapsipinicon River 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 February 2021.

How much traffic does County Rd. X-75 over Wapsipinicon River carry?

About 226 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is County Rd. X-75 over Wapsipinicon River?

The structure is 550 ft (167.5 m) long with a longest span of 96 ft (29.4 m) and a deck 33 ft wide.

Who owns County Rd. X-75 over Wapsipinicon River?

It is owned by the County Highway Agency.