US Bridges

NB US 65 over Vandalia RD (bp)

Good

Polk County, Iowa · 2.1 Miles S of JCT Ia 163 · Structure no. 000000000606815

Built
1997
28 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
193 ft
3 main spans
Daily traffic
11,350
2022 count
Owner
State
State Highway Agency

About this bridge

NB US 65 over Vandalia RD (bp) is a prestressed concrete stringer/multi-beam or girder carrying NB US 65 over Vandalia RD (bp) in Polk County, Iowa. It was built in 1997, so it is 28 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 11,350 vehicles a day, roughly 12% of them trucks, projected to reach 11,350 by 2043. The structure is 193 ft (58.8 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNB US 65
CrossesVandalia RD (bp)
Location2.1 Miles S of JCT Ia 163
RouteU.S. Route 65
CountyPolk County
StateIowa
Coordinates41.57209, -93.51319
Functional classUrban Other Principal Arterial

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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.4 US tons
Inventory rating43.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length193 ft (58.8 m)
Longest span96 ft (29.3 m)
Deck width50 ft (15.1 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,350 (2022)
Projected traffic11,350 by 2043
Trucks12%
Lanes on structure2
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 NB US 65 over Vandalia RD (bp) built?

It was built in 1997, making it 28 years old in 2025.

What condition is NB US 65 over Vandalia RD (bp) 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 2023.

How much traffic does NB US 65 over Vandalia RD (bp) carry?

About 11,350 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is NB US 65 over Vandalia RD (bp)?

The structure is 193 ft (58.8 m) long with a longest span of 96 ft (29.3 m) and a deck 50 ft wide.

Who owns NB US 65 over Vandalia RD (bp)?

It is owned by the State Highway Agency.