US Bridges

I-8 EB On/Off Ramp over 70th ST On/Off Ramp Oh

Good

San Diego County, California · 11-SD-008-9.65 · Structure no. 57 1094

Built
2006
19 years old
Condition
Good
inspected April 2022
Type
Frame
Concrete
Length
35 ft
2 main spans
Daily traffic
15,000
2014 count
Owner
State
State Highway Agency

About this bridge

I-8 EB On/Off Ramp over 70th ST On/Off Ramp Oh is a concrete frame carrying I-8 EB On/Off Ramp over 70th ST On/Off Ramp Oh in San Diego County, California. It was built in 2006, so it is 19 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 15,000 vehicles a day, roughly 4% of them trucks, projected to reach 32,428 by 2039. The structure is 35 ft (10.6 m) long and 161 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI-8 EB On/Off Ramp
Crosses70th ST On/Off Ramp Oh
Location11-SD-008-9.65
RouteInterstate 8
CountySan Diego County
StateCalifornia
Coordinates32.77308, -117.04521
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 inspectionApril 2022
Inspection intervalevery 48 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 typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length35 ft (10.6 m)
Longest span17 ft (5.3 m)
Deck width161 ft (49 m)
Roadway width95 ft (29 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2014)
Projected traffic32,428 by 2039
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 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 I-8 EB On/Off Ramp over 70th ST On/Off Ramp Oh built?

It was built in 2006, making it 19 years old in 2025.

What condition is I-8 EB On/Off Ramp over 70th ST On/Off Ramp Oh 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 April 2022.

How much traffic does I-8 EB On/Off Ramp over 70th ST On/Off Ramp Oh carry?

About 15,000 vehicles per day (2014 count), of which roughly 4% are trucks.

How long is I-8 EB On/Off Ramp over 70th ST On/Off Ramp Oh?

The structure is 35 ft (10.6 m) long with a longest span of 17 ft (5.3 m) and a deck 161 ft wide.

Who owns I-8 EB On/Off Ramp over 70th ST On/Off Ramp Oh?

It is owned by the State Highway Agency.