US Bridges

US 63 over Little Soap Creek

Fair

Wapello County, Iowa · 0.9 Mi. S of SR H47. · Structure no. 000000000050600

Built
1964
61 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
221 ft
3 main spans
Daily traffic
4,660
2022 count
Owner
State
State Highway Agency

About this bridge

US 63 over Little Soap Creek is a prestressed concrete stringer/multi-beam or girder carrying US 63 over Little Soap Creek in Wapello County, Iowa. It was built in 1964, so it is 61 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 4,660 vehicles a day, roughly 12% of them trucks, projected to reach 4,660 by 2043. The structure is 221 ft (67.4 m) long and 36 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesUS 63
CrossesLittle Soap Creek
Location0.9 Mi. S of SR H47.
RouteU.S. Route 63
StateIowa
Coordinates40.92624, -92.40955
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating63.2 US tons
Inventory rating21.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length221 ft (67.4 m)
Longest span73 ft (22.3 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,660 (2022)
Projected traffic4,660 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 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 63 over Little Soap Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is US 63 over Little Soap Creek 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 2023.

How much traffic does US 63 over Little Soap Creek carry?

About 4,660 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US 63 over Little Soap Creek?

The structure is 221 ft (67.4 m) long with a longest span of 73 ft (22.3 m) and a deck 36 ft wide.

Who owns US 63 over Little Soap Creek?

It is owned by the State Highway Agency.