US Bridges

Transit Bus Ramp over Harrison Street

Good

San Francisco County, California · Return to Transit Center · Structure no. 34C0087R

Built
2018
7 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
95 ft
1 main span
Daily traffic
1,000
2019 count
Owner
Local
Other Local Agency

About this bridge

Transit Bus Ramp over Harrison Street is a concrete box beam or girders - multiple carrying Transit Bus Ramp over Harrison Street in San Francisco County, California. It was built in 2018, so it is 7 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 1,000 vehicles a day, roughly 90% of them trucks, projected to reach 1,200 by 2040. The structure is 95 ft (29 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesTransit Bus Ramp
CrossesHarrison Street
LocationReturn to Transit Center
Coordinates37.785, -122.39411
Functional classUrban Local

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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length95 ft (29 m)
Longest span84 ft (25.7 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2019)
Projected traffic1,200 by 2040
Trucks90%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local 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 Transit Bus Ramp over Harrison Street built?

It was built in 2018, making it 7 years old in 2025.

What condition is Transit Bus Ramp over Harrison Street 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 2023.

How much traffic does Transit Bus Ramp over Harrison Street carry?

About 1,000 vehicles per day (2019 count), of which roughly 90% are trucks.

How long is Transit Bus Ramp over Harrison Street?

The structure is 95 ft (29 m) long with a longest span of 84 ft (25.7 m) and a deck 25 ft wide.

Who owns Transit Bus Ramp over Harrison Street?

It is owned by the Other Local Agency.