US Bridges

US 67 over Wapsipinicon Overflow

Fair

Clinton County, Iowa · 1.5 Mi. S of Sec. Rd. Z36 · Structure no. 000000000020961

Built
1982
43 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
264 ft
6 main spans
Daily traffic
5,100
2022 count
Owner
State
State Highway Agency

About this bridge

US 67 over Wapsipinicon Overflow is a concrete continuous slab carrying US 67 over Wapsipinicon Overflow in Clinton County, Iowa. It was built in 1982, so it is 43 years old, younger 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 5,100 vehicles a day, roughly 8% of them trucks, projected to reach 5,100 by 2042. The structure is 264 ft (80.5 m) long and 47 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesUS 67
CrossesWapsipinicon Overflow
Location1.5 Mi. S of Sec. Rd. Z36
RouteU.S. Route 67
StateIowa
Coordinates41.73032, -90.35946
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating69.9 US tons
Inventory rating41.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length264 ft (80.5 m)
Longest span47 ft (14.3 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,100 (2022)
Projected traffic5,100 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 67 over Wapsipinicon Overflow built?

It was built in 1982, making it 43 years old in 2025.

What condition is US 67 over Wapsipinicon Overflow 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 February 2024.

How much traffic does US 67 over Wapsipinicon Overflow carry?

About 5,100 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is US 67 over Wapsipinicon Overflow?

The structure is 264 ft (80.5 m) long with a longest span of 47 ft (14.3 m) and a deck 47 ft wide.

Who owns US 67 over Wapsipinicon Overflow?

It is owned by the State Highway Agency.