US Bridges

Antelope Drive over US-89

Good

Davis County, Utah · US-89 under Antelope DR · Structure no. 0F 908

Built
2022
3 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
154 ft
2 main spans
Daily traffic
6,693
2021 count
Owner
State
State Highway Agency

About this bridge

Antelope Drive over US-89 is a prestressed concrete stringer/multi-beam or girder carrying Antelope Drive over US-89 in Davis County, Utah. It was built in 2022, so it is 3 years old, younger than the Utah average of 40.1 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 6,693 vehicles a day, roughly 5% of them trucks, projected to reach 8,032 by 2041. The structure is 154 ft (46.8 m) long and 84 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesAntelope Drive
CrossesUS-89
LocationUS-89 under Antelope DR
RouteCity Street 1478
StateUtah
Coordinates41.09214, -111.91071
Functional classUrban Minor 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.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHL 93
Structure length154 ft (46.8 m)
Longest span154 ft (46.8 m)
Deck width84 ft (25.5 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,693 (2021)
Projected traffic8,032 by 2041
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

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 Antelope Drive over US-89 built?

It was built in 2022, making it 3 years old in 2025.

What condition is Antelope Drive over US-89 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 June 2023.

How much traffic does Antelope Drive over US-89 carry?

About 6,693 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Antelope Drive over US-89?

The structure is 154 ft (46.8 m) long with a longest span of 154 ft (46.8 m) and a deck 84 ft wide.

Who owns Antelope Drive over US-89?

It is owned by the State Highway Agency.