US Bridges

County Rd. X-28 over Wapsipinicon River

Fair

Jones County, Iowa · 084040607 · Structure no. 000000000207711

Built
1971
54 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
262 ft
4 main spans
Daily traffic
550
2022 count
Owner
County
County Highway Agency

About this bridge

County Rd. X-28 over Wapsipinicon River is a prestressed concrete stringer/multi-beam or girder carrying County Rd. X-28 over Wapsipinicon River in Jones County, Iowa. It was built in 1971, so it is 54 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 550 vehicles a day, roughly 14% of them trucks, projected to reach 550 by 2043. The structure is 262 ft (79.9 m) long and 32 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCounty Rd. X-28
CrossesWapsipinicon River
Location084040607
RouteCounty Highway 0
CountyJones County
StateIowa
Coordinates42.11353, -91.352
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
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 alignment6: Equal to present minimum criteria
Operating rating52.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length262 ft (79.9 m)
Longest span69 ft (21 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2022)
Projected traffic550 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Rd. X-28 over Wapsipinicon River built?

It was built in 1971, making it 54 years old in 2025.

What condition is County Rd. X-28 over Wapsipinicon River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does County Rd. X-28 over Wapsipinicon River carry?

About 550 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is County Rd. X-28 over Wapsipinicon River?

The structure is 262 ft (79.9 m) long with a longest span of 69 ft (21 m) and a deck 32 ft wide.

Who owns County Rd. X-28 over Wapsipinicon River?

It is owned by the County Highway Agency.