US Bridges

Panoche Road over Tres Pinos Creek

Poor

San Benito County, California · 6 MI E of SH 25 · Structure no. 43C0016

Built
1963
62 years old
Condition
Poor
inspected November 2024
Type
Slab
Concrete Continuous
Length
130 ft
4 main spans
Daily traffic
800
2010 count
Owner
County
County Highway Agency

About this bridge

Panoche Road over Tres Pinos Creek is a concrete continuous slab carrying Panoche Road over Tres Pinos Creek in San Benito County, California. It was built in 1963, so it is 62 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 2 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 800 vehicles a day, roughly 5% of them trucks, projected to reach 1,045 by 2042. The structure is 130 ft (39.7 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPanoche Road
CrossesTres Pinos Creek
Location6 MI E of SH 25
RouteCounty Highway 0
Coordinates36.68357, -121.20915
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; extensive scour has occurred
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating29.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length130 ft (39.7 m)
Longest span32 ft (9.8 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2010)
Projected traffic1,045 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$1.3 million (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Panoche Road over Tres Pinos Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Panoche Road over Tres Pinos Creek 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 November 2024.

How much traffic does Panoche Road over Tres Pinos Creek carry?

About 800 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Panoche Road over Tres Pinos Creek?

The structure is 130 ft (39.7 m) long with a longest span of 32 ft (9.8 m) and a deck 29 ft wide.

Who owns Panoche Road over Tres Pinos Creek?

It is owned by the County Highway Agency.