US Bridges

N5-E54 Connector over Mtdb Lrt

Good

San Diego County, California · 11-SD-005-9.17-NATC · Structure no. 57 0844G

Built
1988
37 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
375 ft
4 main spans
Daily traffic
23,000
2020 count
Owner
State
State Highway Agency

About this bridge

N5-E54 Connector over Mtdb Lrt is a prestressed concrete continuous box beam or girders - multiple carrying N5-E54 Connector over Mtdb Lrt in San Diego County, California. It was built in 1988, so it is 37 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 23,000 vehicles a day, roughly 4% of them trucks, projected to reach 25,000 by 2040. The structure is 375 ft (114.3 m) long and 42 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesN5-E54 Connector
CrossesMtdb Lrt
Location11-SD-005-9.17-NATC
RouteInterstate 5
CountySan Diego County
StateCalifornia
Coordinates32.64942, -117.10189
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 inspectionMarch 2023
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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length375 ft (114.3 m)
Longest span120 ft (36.6 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,000 (2020)
Projected traffic25,000 by 2040
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 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-E54 Connector over Mtdb Lrt built?

It was built in 1988, making it 37 years old in 2025.

What condition is N5-E54 Connector over Mtdb Lrt 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 March 2023.

How much traffic does N5-E54 Connector over Mtdb Lrt carry?

About 23,000 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is N5-E54 Connector over Mtdb Lrt?

The structure is 375 ft (114.3 m) long with a longest span of 120 ft (36.6 m) and a deck 42 ft wide.

Who owns N5-E54 Connector over Mtdb Lrt?

It is owned by the State Highway Agency.