US Bridges

State Park Road over Little River

Poor

Mendocino County, California · Van Damme State Park · Structure no. 10P0002

Built
1951
74 years old
Condition
Poor
inspected May 2023
Type
Arch - Deck
Steel
Length
38 ft
2 main spans
Daily traffic
150
1998 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

State Park Road over Little River is a steel arch - deck carrying State Park Road over Little River in Mendocino 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 poor condition with a lowest component rating of 0 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, temporary structure in place while original is closed.

It carries about 150 vehicles a day, roughly 1% of them trucks, projected to reach 217 by 2041. The structure is 38 ft (11.6 m) long and 22 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesState Park Road
CrossesLittle River
LocationVan Damme State Park
RouteState Lands Road 0
Coordinates39.27661, -123.78475
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure0 FailedOut of service and beyond corrective action.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, temporary structure in place while original is closed
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeArch - Deck
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span14 ft (4.3 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (1998)
Projected traffic217 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$305,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was State Park Road over Little River built?

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

What condition is State Park Road over Little River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does State Park Road over Little River carry?

About 150 vehicles per day (1998 count), of which roughly 1% are trucks.

How long is State Park Road over Little River?

The structure is 38 ft (11.6 m) long with a longest span of 14 ft (4.3 m) and a deck 22 ft wide.

Who owns State Park Road over Little River?

It is owned by the State Park, Forest, or Reservation Agency.