US Bridges

8 MI RD Ferry Ramp over Little Potato Slough E

Fair

San Joaquin County, California · 12.3 MI W of I-5 · Structure no. 29C0484

Built
1951
74 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
37 ft
2 main spans
Daily traffic
80
2024 count
Owner
County
County Highway Agency

About this bridge

8 MI RD Ferry Ramp over Little Potato Slough E is a concrete continuous slab carrying 8 MI RD Ferry Ramp over Little Potato Slough E in San Joaquin County, California. It was built in 1951, so it is 74 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 80 vehicles a day, projected to reach 100 by 2044. The structure is 37 ft (11.2 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
Carries8 MI RD Ferry Ramp
CrossesLittle Potato Slough E
Location12.3 MI W of I-5
RouteCounty Highway 0
CountySan Joaquin County
StateCalifornia
Coordinates38.06028, -121.49968
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length37 ft (11.2 m)
Longest span15 ft (4.7 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2024)
Projected traffic100 by 2044
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway and pedestrian
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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was 8 MI RD Ferry Ramp over Little Potato Slough E built?

It was built in 1951, making it 74 years old in 2025.

What condition is 8 MI RD Ferry Ramp over Little Potato Slough E 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 April 2024.

How much traffic does 8 MI RD Ferry Ramp over Little Potato Slough E carry?

About 80 vehicles per day (2024 count).

How long is 8 MI RD Ferry Ramp over Little Potato Slough E?

The structure is 37 ft (11.2 m) long with a longest span of 15 ft (4.7 m) and a deck 24 ft wide.

Who owns 8 MI RD Ferry Ramp over Little Potato Slough E?

It is owned by the County Highway Agency.