US Bridges

Parducci Road over U.S. Highway 101

Fair

Mendocino County, California · 01-MEN-101-27.92 · Structure no. 10 0202

Built
1962
63 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete Continuous
Length
205 ft
4 main spans
Daily traffic
610
2008 count
Owner
State
State Highway Agency

About this bridge

Parducci Road over U.S. Highway 101 is a concrete continuous tee beam carrying Parducci Road over U.S. Highway 101 in Mendocino County, California. It was built in 1962, so it is 63 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 610 vehicles a day, roughly 20% of them trucks, projected to reach 1,092 by 2042. The structure is 205 ft (62.4 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesParducci Road
CrossesU.S. Highway 101
Location01-MEN-101-27.92
RouteCounty Highway 0
Coordinates39.1987, -123.20961
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length205 ft (62.4 m)
Longest span61 ft (18.7 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic610 (2008)
Projected traffic1,092 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Parducci Road over U.S. Highway 101 built?

It was built in 1962, making it 63 years old in 2025.

What condition is Parducci Road over U.S. Highway 101 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 Parducci Road over U.S. Highway 101 carry?

About 610 vehicles per day (2008 count), of which roughly 20% are trucks.

How long is Parducci Road over U.S. Highway 101?

The structure is 205 ft (62.4 m) long with a longest span of 61 ft (18.7 m) and a deck 34 ft wide.

Who owns Parducci Road over U.S. Highway 101?

It is owned by the State Highway Agency.