US Bridges

Murray Drive over Mtdb Lrt & Sdiv RR

Poor

San Diego County, California · At Int. of Water ST · Structure no. 57C0468

Built
1988
37 years old
Condition
Poor
inspected May 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
66 ft
1 main span
Daily traffic
8,500
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Murray Drive over Mtdb Lrt & Sdiv RR is a concrete box beam or girders - multiple carrying Murray Drive over Mtdb Lrt & Sdiv RR 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 8,500 vehicles a day, roughly 3% of them trucks, projected to reach 16,033 by 2042. The structure is 66 ft (20.1 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMurray Drive
CrossesMtdb Lrt & Sdiv RR
LocationAt Int. of Water ST
RouteCity Street 0
CountySan Diego County
StateCalifornia
Coordinates32.77977, -116.98928
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length66 ft (20.1 m)
Longest span61 ft (18.6 m)
Deck width48 ft (14.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,500 (2016)
Projected traffic16,033 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Murray Drive over Mtdb Lrt & Sdiv RR built?

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

What condition is Murray Drive over Mtdb Lrt & Sdiv RR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does Murray Drive over Mtdb Lrt & Sdiv RR carry?

About 8,500 vehicles per day (2016 count), of which roughly 3% are trucks.

How long is Murray Drive over Mtdb Lrt & Sdiv RR?

The structure is 66 ft (20.1 m) long with a longest span of 61 ft (18.6 m) and a deck 48 ft wide.

Who owns Murray Drive over Mtdb Lrt & Sdiv RR?

It is owned by the City or Municipal Highway Agency.