US Bridges

Interstate 5 over 56th Ave

Good

Sacramento County, California · 03-SAC-005-17.58-SAC · Structure no. 24 0265

Built
1974
51 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
117,000
2015 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 over 56th Ave is a prestressed concrete box beam or girders - multiple carrying Interstate 5 over 56th Ave in Sacramento County, California. It was built in 1974, so it is 51 years old, younger than the California average of 54.8 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 117,000 vehicles a day, roughly 12% of them trucks, projected to reach 201,993 by 2046. The structure is 100 ft (30.6 m) long and 168 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesInterstate 5
Crosses56th Ave
Location03-SAC-005-17.58-SAC
RouteInterstate 5
Coordinates38.50116, -121.51731
Functional classUrban Principal Arterial - Interstate

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 inspectionJune 2024
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 rating77.8 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length100 ft (30.6 m)
Longest span98 ft (29.9 m)
Deck width168 ft (51.2 m)
Roadway width163 ft (49.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic117,000 (2015)
Projected traffic201,993 by 2046
Trucks12%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Interstate 5 over 56th Ave built?

It was built in 1974, making it 51 years old in 2025.

What condition is Interstate 5 over 56th 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 June 2024.

How much traffic does Interstate 5 over 56th Ave carry?

About 117,000 vehicles per day (2015 count), of which roughly 12% are trucks.

How long is Interstate 5 over 56th Ave?

The structure is 100 ft (30.6 m) long with a longest span of 98 ft (29.9 m) and a deck 168 ft wide.

Who owns Interstate 5 over 56th Ave?

It is owned by the State Highway Agency.