US Bridges

San Felipe Road over Tequisquita Slough

Poor

San Benito County, California · 0.85 MI South of Shore RD · Structure no. 43C0035

Built
1952
73 years old
Condition
Poor
inspected January 2025
Type
Slab
Wood or Timber
Length
49 ft
3 main spans
Daily traffic
2,760
2010 count
Owner
County
County Highway Agency

About this bridge

San Felipe Road over Tequisquita Slough is a wood or timber slab carrying San Felipe Road over Tequisquita Slough in San Benito County, California. It was built in 1952, so it is 73 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. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 2,760 vehicles a day, roughly 5% of them trucks, projected to reach 3,186 by 2047. The structure is 49 ft (14.8 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSan Felipe Road
CrossesTequisquita Slough
Location0.85 MI South of Shore RD
RouteCounty Highway 0
CountySan Benito County
StateCalifornia
Coordinates36.92813, -121.40694
Functional classRural Minor Collector

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating8.9 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length49 ft (14.8 m)
Longest span16 ft (5 m)
Deck width26 ft (8 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,760 (2010)
Projected traffic3,186 by 2047
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$459,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was San Felipe Road over Tequisquita Slough built?

It was built in 1952, making it 73 years old in 2025.

What condition is San Felipe Road over Tequisquita Slough 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 January 2025.

How much traffic does San Felipe Road over Tequisquita Slough carry?

About 2,760 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is San Felipe Road over Tequisquita Slough?

The structure is 49 ft (14.8 m) long with a longest span of 16 ft (5 m) and a deck 26 ft wide.

Who owns San Felipe Road over Tequisquita Slough?

It is owned by the County Highway Agency.