US Bridges

N5-MARCH LN Offrmp over Ebmud Aqueduct

Good

San Joaquin County, California · 10-SJ-005-29.83 · Structure no. 29 0226S

Built
1970
55 years old, rebuilt 1997
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
256 ft
4 main spans
Daily traffic
10,800
1998 count
Owner
State
State Highway Agency

About this bridge

N5-MARCH LN Offrmp over Ebmud Aqueduct is a concrete continuous box beam or girders - multiple carrying N5-MARCH LN Offrmp over Ebmud Aqueduct in San Joaquin County, California. It was built in 1970 and reconstructed in 1997, so it is 55 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 10,800 vehicles a day, roughly 6% of them trucks, projected to reach 22,248 by 2047. The structure is 256 ft (78 m) long and 52 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesN5-MARCH LN Offrmp
CrossesEbmud Aqueduct
Location10-SJ-005-29.83
RouteInterstate 5
Coordinates37.98243, -121.34202
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.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating31.1 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length256 ft (78 m)
Longest span91 ft (27.7 m)
Deck width52 ft (15.9 m)
Roadway width49 ft (14.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,800 (1998)
Projected traffic22,248 by 2047
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
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 N5-MARCH LN Offrmp over Ebmud Aqueduct built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1997.

What condition is N5-MARCH LN Offrmp over Ebmud Aqueduct 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 2025.

How much traffic does N5-MARCH LN Offrmp over Ebmud Aqueduct carry?

About 10,800 vehicles per day (1998 count), of which roughly 6% are trucks.

How long is N5-MARCH LN Offrmp over Ebmud Aqueduct?

The structure is 256 ft (78 m) long with a longest span of 91 ft (27.7 m) and a deck 52 ft wide.

Who owns N5-MARCH LN Offrmp over Ebmud Aqueduct?

It is owned by the State Highway Agency.