US Bridges

Ia 27 over University Ave

Good

Black Hawk County, Iowa · 2.1 Mi. S of U.S. 218 · Structure no. 000000000601275

Built
1993
32 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
289 ft
3 main spans
Daily traffic
13,800
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 27 over University Ave is a steel continuous stringer/multi-beam or girder carrying Ia 27 over University Ave in Black Hawk County, Iowa. It was built in 1993, so it is 32 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 13,800 vehicles a day, roughly 8% of them trucks, projected to reach 13,800 by 2042. The structure is 289 ft (88.1 m) long and 87 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIa 27
CrossesUniversity Ave
Location2.1 Mi. S of U.S. 218
RouteState Highway 27
CountyBlack Hawk County
StateIowa
Coordinates42.51268, -92.44327
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length289 ft (88.1 m)
Longest span140 ft (42.7 m)
Deck width87 ft (26.5 m)
Roadway width80 ft (24.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,800 (2022)
Projected traffic13,800 by 2042
Trucks8%
Lanes on structure4
Traffic directionTwo-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 Ia 27 over University Ave built?

It was built in 1993, making it 32 years old in 2025.

What condition is Ia 27 over University Ave 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 May 2023.

How much traffic does Ia 27 over University Ave carry?

About 13,800 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Ia 27 over University Ave?

The structure is 289 ft (88.1 m) long with a longest span of 140 ft (42.7 m) and a deck 87 ft wide.

Who owns Ia 27 over University Ave?

It is owned by the State Highway Agency.