US Bridges

Interstate 8 EB over Morena Blvd

Fair

San Diego County, California · 11-SD-008-R0.37-SD · Structure no. 57 0317R

Built
1969
56 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
139 ft
3 main spans
Daily traffic
99,500
2014 count
Owner
State
State Highway Agency

About this bridge

Interstate 8 EB over Morena Blvd is a concrete continuous box beam or girders - multiple carrying Interstate 8 EB over Morena Blvd in San Diego County, California. It was built in 1969, so it is 56 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 99,500 vehicles a day, roughly 1% of them trucks, projected to reach 122,828 by 2042. The structure is 139 ft (42.4 m) long and 77 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 8 EB
CrossesMorena Blvd
Location11-SD-008-R0.37-SD
RouteInterstate 8
Coordinates32.75994, -117.19811
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 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 rating48.6 US tons
Inventory rating37.5 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length139 ft (42.4 m)
Longest span75 ft (22.9 m)
Deck width77 ft (23.6 m)
Roadway width75 ft (22.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99,500 (2014)
Projected traffic122,828 by 2042
Trucks1%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 8 EB over Morena Blvd built?

It was built in 1969, making it 56 years old in 2025.

What condition is Interstate 8 EB over Morena Blvd in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does Interstate 8 EB over Morena Blvd carry?

About 99,500 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is Interstate 8 EB over Morena Blvd?

The structure is 139 ft (42.4 m) long with a longest span of 75 ft (22.9 m) and a deck 77 ft wide.

Who owns Interstate 8 EB over Morena Blvd?

It is owned by the State Highway Agency.