US Bridges

US 6 over E Br Wapsinonoc Creek

Poor

Muscatine County, Iowa · 0.5 Mi. E of Jct. Ia 70 · Structure no. 000000000037830

Built
1920
105 years old, rebuilt 1956
Condition
Poor
inspected March 2023
Type
Slab
Concrete Continuous
Length
60 ft
2 main spans
Daily traffic
1,770
2022 count
Owner
State
State Highway Agency

About this bridge

US 6 over E Br Wapsinonoc Creek is a concrete continuous slab carrying US 6 over E Br Wapsinonoc Creek in Muscatine County, Iowa. It was built in 1920 and reconstructed in 1956, so it is 105 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,770 vehicles a day, roughly 8% of them trucks, projected to reach 1,770 by 2042. The structure is 60 ft (18.3 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 6
CrossesE Br Wapsinonoc Creek
Location0.5 Mi. E of Jct. Ia 70
RouteU.S. Route 6
StateIowa
Coordinates41.56943, -91.25106
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length60 ft (18.3 m)
Longest span30 ft (9.1 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,770 (2022)
Projected traffic1,770 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

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 6 over E Br Wapsinonoc Creek built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1956.

What condition is US 6 over E Br Wapsinonoc Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does US 6 over E Br Wapsinonoc Creek carry?

About 1,770 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is US 6 over E Br Wapsinonoc Creek?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 34 ft wide.

Who owns US 6 over E Br Wapsinonoc Creek?

It is owned by the State Highway Agency.