US Bridges

NB Ramp to Univ over Ramp H

Fair

Polk County, Iowa · 1.0 Mile E of W JCT I-35 · Structure no. 000000000605405

Built
1984
41 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
254 ft
3 main spans
Daily traffic
3,440
2022 count
Owner
State
State Highway Agency

About this bridge

NB Ramp to Univ over Ramp H is a steel continuous stringer/multi-beam or girder carrying NB Ramp to Univ over Ramp H in Polk County, Iowa. It was built in 1984, so it is 41 years old, younger 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 5 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 3,440 vehicles a day, roughly 3% of them trucks, projected to reach 3,440 by 2044. The structure is 254 ft (77.4 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNB Ramp to Univ
CrossesRamp H
Location1.0 Mile E of W JCT I-35
RouteInterstate 35
CountyPolk County
StateIowa
Coordinates41.59747, -93.7761
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.7 US tons
Inventory rating55.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length254 ft (77.4 m)
Longest span118 ft (36 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,440 (2022)
Projected traffic3,440 by 2044
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 Ramp to Univ over Ramp H built?

It was built in 1984, making it 41 years old in 2025.

What condition is NB Ramp to Univ over Ramp H 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 September 2024.

How much traffic does NB Ramp to Univ over Ramp H carry?

About 3,440 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is NB Ramp to Univ over Ramp H?

The structure is 254 ft (77.4 m) long with a longest span of 118 ft (36 m) and a deck 29 ft wide.

Who owns NB Ramp to Univ over Ramp H?

It is owned by the State Highway Agency.