US Bridges

Baybar RD over Old San Jose Crk

Good

Los Angeles County, California · 0.2MI N/O Mission Mill RD · Structure no. 53C1622

Built
1966
59 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
330
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Baybar RD over Old San Jose Crk is a concrete culvert carrying Baybar RD over Old San Jose Crk in Los Angeles County, California. It was built in 1966, so it is 59 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 330 vehicles a day, roughly 2% of them trucks, projected to reach 330 by 2042. The structure is 38 ft (11.6 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesBaybar RD
CrossesOld San Jose Crk
Location0.2MI N/O Mission Mill RD
RouteCounty Highway 0
Coordinates34.0201, -118.04745
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span8 ft (2.4 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2017)
Projected traffic330 by 2042
Trucks2%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Baybar RD over Old San Jose Crk built?

It was built in 1966, making it 59 years old in 2025.

What condition is Baybar RD over Old San Jose Crk 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 November 2024.

How much traffic does Baybar RD over Old San Jose Crk carry?

About 330 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Baybar RD over Old San Jose Crk?

The structure is 38 ft (11.6 m) long with a longest span of 8 ft (2.4 m) and a deck 24 ft wide.

Who owns Baybar RD over Old San Jose Crk?

It is owned by the City or Municipal Highway Agency.