US Bridges

US 63 NB over Ia 137

Good

Wapello County, Iowa · At Jct. Iowa 137 · Structure no. 000000000608800

Built
2004
21 years old
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
201 ft
3 main spans
Daily traffic
4,750
2022 count
Owner
State
State Highway Agency

About this bridge

US 63 NB over Ia 137 is a prestressed concrete stringer/multi-beam or girder carrying US 63 NB over Ia 137 in Wapello County, Iowa. It was built in 2004, so it is 21 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 4,750 vehicles a day, roughly 20% of them trucks, projected to reach 4,750 by 2042. The structure is 201 ft (61.3 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 63 NB
CrossesIa 137
LocationAt Jct. Iowa 137
RouteU.S. Route 63
StateIowa
Coordinates41.15069, -92.62378
Functional classRural Principal Arterial - Other

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.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.7 US tons
Inventory rating54 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length201 ft (61.3 m)
Longest span76 ft (23.2 m)
Deck width53 ft (16.2 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,750 (2022)
Projected traffic4,750 by 2042
Trucks20%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 63 NB over Ia 137 built?

It was built in 2004, making it 21 years old in 2025.

What condition is US 63 NB over Ia 137 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 January 2023.

How much traffic does US 63 NB over Ia 137 carry?

About 4,750 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is US 63 NB over Ia 137?

The structure is 201 ft (61.3 m) long with a longest span of 76 ft (23.2 m) and a deck 53 ft wide.

Who owns US 63 NB over Ia 137?

It is owned by the State Highway Agency.