US Bridges

San Mrtnz Gran Cyn over San Mrtnz Grande Cyn Ck

Good

Los Angeles County, California · 2.3MI N/O SR-126 HWY · Structure no. 53C1006

Built
1953
72 years old
Condition
Good
inspected April 2024
Type
Slab
Wood or Timber
Length
26 ft
1 main span
Daily traffic
67
2017 count
Owner
County
County Highway Agency

About this bridge

San Mrtnz Gran Cyn over San Mrtnz Grande Cyn Ck is a wood or timber slab carrying San Mrtnz Gran Cyn over San Mrtnz Grande Cyn Ck in Los Angeles County, California. It was built in 1953, so it is 72 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 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 67 vehicles a day, roughly 2% of them trucks, projected to reach 67 by 2043. The structure is 26 ft (7.9 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSan Mrtnz Gran Cyn
CrossesSan Mrtnz Grande Cyn Ck
Location2.3MI N/O SR-126 HWY
RouteCounty Highway 0
Coordinates34.43275, -118.69108
Functional classRural 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.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating69.7 US tons
Inventory rating45.3 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic67 (2017)
Projected traffic67 by 2043
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

OwnerCounty Highway Agency
Maintained byCounty 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 San Mrtnz Gran Cyn over San Mrtnz Grande Cyn Ck built?

It was built in 1953, making it 72 years old in 2025.

What condition is San Mrtnz Gran Cyn over San Mrtnz Grande Cyn Ck 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 2024.

How much traffic does San Mrtnz Gran Cyn over San Mrtnz Grande Cyn Ck carry?

About 67 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is San Mrtnz Gran Cyn over San Mrtnz Grande Cyn Ck?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 28 ft wide.

Who owns San Mrtnz Gran Cyn over San Mrtnz Grande Cyn Ck?

It is owned by the County Highway Agency.