US Bridges

Interstate 5 NB over Service Road

Good

Merced County, California · 10-MER-005-24.93 · Structure no. 39 0172R

Built
1967
58 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete Continuous
Length
66 ft
3 main spans
Daily traffic
21,500
2020 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 NB over Service Road is a concrete continuous slab carrying Interstate 5 NB over Service Road in Merced County, California. It was built in 1967, so it is 58 years old, older 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 21,500 vehicles a day, roughly 30% of them trucks, projected to reach 26,525 by 2046. The structure is 66 ft (20.1 m) long and 42 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesInterstate 5 NB
CrossesService Road
Location10-MER-005-24.93
RouteInterstate 5
Coordinates37.14577, -121.04226
Functional classRural 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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating41.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length66 ft (20.1 m)
Longest span26 ft (7.9 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,500 (2020)
Projected traffic26,525 by 2046
Trucks30%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed24.2 mi (39 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 NB over Service Road built?

It was built in 1967, making it 58 years old in 2025.

What condition is Interstate 5 NB over Service Road 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 January 2024.

How much traffic does Interstate 5 NB over Service Road carry?

About 21,500 vehicles per day (2020 count), of which roughly 30% are trucks.

How long is Interstate 5 NB over Service Road?

The structure is 66 ft (20.1 m) long with a longest span of 26 ft (7.9 m) and a deck 42 ft wide.

Who owns Interstate 5 NB over Service Road?

It is owned by the State Highway Agency.