US Bridges

County RD over San Antonio Channel

Fair

San Bernardino County, California · 0.2 MI W East End ST · Structure no. 54C0470

Built
1958
67 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
34 ft
1 main span
Daily traffic
4,140
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

County RD over San Antonio Channel is a steel stringer/multi-beam or girder carrying County RD over San Antonio Channel in San Bernardino County, California. It was built in 1958, so it is 67 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 5 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 4,140 vehicles a day, roughly 1% of them trucks, projected to reach 8,050 by 2044. The structure is 34 ft (10.4 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCounty RD
CrossesSan Antonio Channel
Location0.2 MI W East End ST
RouteCity Street 0
CountySan Bernardino County
StateCalifornia
Coordinates34.02604, -117.72789
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,140 (2016)
Projected traffic8,050 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 County RD over San Antonio Channel built?

It was built in 1958, making it 67 years old in 2025.

What condition is County RD over San Antonio Channel 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 June 2024.

How much traffic does County RD over San Antonio Channel carry?

About 4,140 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is County RD over San Antonio Channel?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 31 ft wide.

Who owns County RD over San Antonio Channel?

It is owned by the City or Municipal Highway Agency.