US Bridges

Old Waterman Cyn R over Waterman Canyon

Fair

San Bernardino County, California · 2.3 MI N Arrowhead Spr RD · Structure no. 54C0709

Built
2006
19 years old
Condition
Fair
inspected November 2024
Type
Slab
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
750
2014 count
Owner
County
County Highway Agency

About this bridge

Old Waterman Cyn R over Waterman Canyon is a prestressed concrete slab carrying Old Waterman Cyn R over Waterman Canyon in San Bernardino County, California. It was built in 2006, so it is 19 years old, younger 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 6 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 750 vehicles a day, roughly 1% of them trucks, projected to reach 1,017 by 2045. The structure is 28 ft (8.5 m) long and 36 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesOld Waterman Cyn R
CrossesWaterman Canyon
Location2.3 MI N Arrowhead Spr RD
RouteCounty Highway 0
Coordinates34.21073, -117.28494
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length28 ft (8.5 m)
Longest span27 ft (8.1 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2014)
Projected traffic1,017 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.7 mi (14 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 Old Waterman Cyn R over Waterman Canyon built?

It was built in 2006, making it 19 years old in 2025.

What condition is Old Waterman Cyn R over Waterman Canyon 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 November 2024.

How much traffic does Old Waterman Cyn R over Waterman Canyon carry?

About 750 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is Old Waterman Cyn R over Waterman Canyon?

The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.1 m) and a deck 36 ft wide.

Who owns Old Waterman Cyn R over Waterman Canyon?

It is owned by the County Highway Agency.