US Bridges

Ocean Av Munirail over 280 280 On/Off-Ramp

Fair

San Francisco County, California · 04-SF-280-R1.77-SF · Structure no. 34 0094

Built
1964
61 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
245 ft
4 main spans
Daily traffic
20,495
2019 count
Owner
State
State Highway Agency

About this bridge

Ocean Av Munirail over 280 280 On/Off-Ramp is a concrete continuous box beam or girders - multiple carrying Ocean Av Munirail over 280 280 On/Off-Ramp in San Francisco County, California. It was built in 1964, so it is 61 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 20,495 vehicles a day, roughly 2% of them trucks, projected to reach 36,219 by 2045. The structure is 245 ft (74.7 m) long and 96 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOcean Av Munirail
Crosses280 280 On/Off-Ramp
Location04-SF-280-R1.77-SF
RouteCity Street 0D018
CountySan Francisco County
StateCalifornia
Coordinates37.72284, -122.44825
Functional classUrban Other Principal Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.2 US tons
Inventory rating47.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadRailroad
Structure length245 ft (74.7 m)
Longest span74 ft (22.6 m)
Deck width96 ft (29.3 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,495 (2019)
Projected traffic36,219 by 2045
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Ocean Av Munirail over 280 280 On/Off-Ramp built?

It was built in 1964, making it 61 years old in 2025.

What condition is Ocean Av Munirail over 280 280 On/Off-Ramp 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 April 2024.

How much traffic does Ocean Av Munirail over 280 280 On/Off-Ramp carry?

About 20,495 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Ocean Av Munirail over 280 280 On/Off-Ramp?

The structure is 245 ft (74.7 m) long with a longest span of 74 ft (22.6 m) and a deck 96 ft wide.

Who owns Ocean Av Munirail over 280 280 On/Off-Ramp?

It is owned by the State Highway Agency.