US Bridges

17th Street over E ST-S5 on Ramp

Poor

San Diego County, California · 11-SD-005-R15.11-SD · Structure no. 57 0876K

Built
1928
97 years old
Condition
Poor
inspected May 2023
Type
Tee Beam
Concrete Continuous
Length
82 ft
3 main spans
Daily traffic
500
2020 count
Owner
State
State Highway Agency

About this bridge

17th Street over E ST-S5 on Ramp is a concrete continuous tee beam carrying 17th Street over E ST-S5 on Ramp in San Diego County, California. It was built in 1928, so it is 97 years old, older 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 500 vehicles a day, roughly 4% of them trucks, projected to reach 515 by 2040. The structure is 82 ft (25 m) long and 19 ft wide.

Carries17th Street
CrossesE ST-S5 on Ramp
Location11-SD-005-R15.11-SD
RouteCounty Highway 0S450
Coordinates32.71462, -117.14855
Functional classUrban Local

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
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating31.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length82 ft (25 m)
Longest span34 ft (10.4 m)
Deck width19 ft (5.8 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2020)
Projected traffic515 by 2040
Trucks4%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$243,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 17th Street over E ST-S5 on Ramp built?

It was built in 1928, making it 97 years old in 2025.

What condition is 17th Street over E ST-S5 on Ramp 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 17th Street over E ST-S5 on Ramp carry?

About 500 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is 17th Street over E ST-S5 on Ramp?

The structure is 82 ft (25 m) long with a longest span of 34 ft (10.4 m) and a deck 19 ft wide.

Who owns 17th Street over E ST-S5 on Ramp?

It is owned by the State Highway Agency.