US Bridges

Ia 163 WB over SR G5T

Good

Marion County, Iowa · Jct. SR G5T · Structure no. 000000000601680

Built
1996
29 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
181 ft
3 main spans
Daily traffic
3,800
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 163 WB over SR G5T is a prestressed concrete stringer/multi-beam or girder carrying Ia 163 WB over SR G5T in Marion County, Iowa. It was built in 1996, so it is 29 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 3,800 vehicles a day, roughly 16% of them trucks, projected to reach 3,800 by 2044. The structure is 181 ft (55.2 m) long and 43 ft wide.

CarriesIa 163 WB
CrossesSR G5T
LocationJct. SR G5T
RouteState Highway 163
StateIowa
Coordinates41.38961, -92.87065
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length181 ft (55.2 m)
Longest span96 ft (29.3 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2022)
Projected traffic3,800 by 2044
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 Ia 163 WB over SR G5T built?

It was built in 1996, making it 29 years old in 2025.

What condition is Ia 163 WB over SR G5T 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 April 2024.

How much traffic does Ia 163 WB over SR G5T carry?

About 3,800 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is Ia 163 WB over SR G5T?

The structure is 181 ft (55.2 m) long with a longest span of 96 ft (29.3 m) and a deck 43 ft wide.

Who owns Ia 163 WB over SR G5T?

It is owned by the State Highway Agency.