US Bridges

US 63 over UP RR

Good

Mahaska County, Iowa · 1.8 Mi. N of Jct. SR T65 · Structure no. 000000000034891

Built
2008
17 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
413 ft
3 main spans
Daily traffic
3,310
2022 count
Owner
State
State Highway Agency

About this bridge

US 63 over UP RR is a steel continuous stringer/multi-beam or girder carrying US 63 over UP RR in Mahaska County, Iowa. It was built in 2008, so it is 17 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 3,310 vehicles a day, roughly 17% of them trucks, projected to reach 3,310 by 2044. The structure is 413 ft (125.8 m) long and 47 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesUS 63
CrossesUP RR
Location1.8 Mi. N of Jct. SR T65
RouteU.S. Route 63
StateIowa
Coordinates41.33773, -92.64987
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.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
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 rating62.1 US tons
Inventory rating37.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length413 ft (125.8 m)
Longest span157 ft (48 m)
Deck width47 ft (14.2 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,310 (2022)
Projected traffic3,310 by 2044
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed8.7 mi (14 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 over UP RR built?

It was built in 2008, making it 17 years old in 2025.

What condition is US 63 over UP RR 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 August 2024.

How much traffic does US 63 over UP RR carry?

About 3,310 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is US 63 over UP RR?

The structure is 413 ft (125.8 m) long with a longest span of 157 ft (48 m) and a deck 47 ft wide.

Who owns US 63 over UP RR?

It is owned by the State Highway Agency.