US Bridges

Forrester RD (S30) over New River

Fair

Imperial County, California · 2 MI N/O Worthington RD · Structure no. 58C0075

Built
1971
54 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete Continuous
Length
132 ft
5 main spans
Daily traffic
4,203
2020 count
Owner
County
County Highway Agency

About this bridge

Forrester RD (S30) over New River is a concrete continuous slab carrying Forrester RD (S30) over New River in Imperial County, California. It was built in 1971, so it is 54 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 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 4,203 vehicles a day, roughly 5% of them trucks, projected to reach 4,876 by 2042. The structure is 132 ft (40.2 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesForrester RD (S30)
CrossesNew River
Location2 MI N/O Worthington RD
RouteCounty Highway 0
CountyImperial County
StateCalifornia
Coordinates32.87664, -115.62101
Functional classRural Principal Arterial - Other

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating53.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length132 ft (40.2 m)
Longest span26 ft (7.9 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,203 (2020)
Projected traffic4,876 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 Forrester RD (S30) over New River built?

It was built in 1971, making it 54 years old in 2025.

What condition is Forrester RD (S30) over New River 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 December 2024.

How much traffic does Forrester RD (S30) over New River carry?

About 4,203 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Forrester RD (S30) over New River?

The structure is 132 ft (40.2 m) long with a longest span of 26 ft (7.9 m) and a deck 33 ft wide.

Who owns Forrester RD (S30) over New River?

It is owned by the County Highway Agency.