US Bridges

Yermo RD over Yermo Ditch

Fair

San Bernardino County, California · 0.2 MI E/O E. Yermo RD · Structure no. 54C0102

Built
1929
96 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
59 ft
3 main spans
Daily traffic
821
2015 count
Owner
County
County Highway Agency

About this bridge

Yermo RD over Yermo Ditch is a wood or timber stringer/multi-beam or girder carrying Yermo RD over Yermo Ditch in San Bernardino County, California. It was built in 1929, so it is 96 years old, older 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 821 vehicles a day, roughly 2% of them trucks, projected to reach 926 by 2045. The structure is 59 ft (18 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesYermo RD
CrossesYermo Ditch
Location0.2 MI E/O E. Yermo RD
RouteCounty Highway 0
CountySan Bernardino County
StateCalifornia
Coordinates34.90869, -116.80654
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating19.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length59 ft (18 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic821 (2015)
Projected traffic926 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Yermo RD over Yermo Ditch built?

It was built in 1929, making it 96 years old in 2025.

What condition is Yermo RD over Yermo Ditch 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 Yermo RD over Yermo Ditch carry?

About 821 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Yermo RD over Yermo Ditch?

The structure is 59 ft (18 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Yermo RD over Yermo Ditch?

It is owned by the County Highway Agency.