US Bridges

Pentz Road over Berry Canyon

Poor

Butte County, California · 3.1 MI East of SR 99 · Structure no. 12C0247

Built
1970
55 years old
Condition
Poor
inspected May 2024
Type
Slab
Concrete Continuous
Length
72 ft
3 main spans
Daily traffic
7,146
2019 count
Owner
County
County Highway Agency

About this bridge

Pentz Road over Berry Canyon is a concrete continuous slab carrying Pentz Road over Berry Canyon in Butte County, California. It was built in 1970, so it is 55 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 4 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.

It carries about 7,146 vehicles a day, roughly 11% of them trucks, projected to reach 5,838 by 2042. The structure is 72 ft (21.9 m) long and 32 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesPentz Road
CrossesBerry Canyon
Location3.1 MI East of SR 99
RouteCounty Highway 0
Coordinates39.64012, -121.66323
Functional classRural Major Collector

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.6 US tons
Inventory rating26.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span28 ft (8.5 m)
Deck width32 ft (9.9 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,146 (2019)
Projected traffic5,838 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$366,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pentz Road over Berry Canyon built?

It was built in 1970, making it 55 years old in 2025.

What condition is Pentz Road over Berry Canyon 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 2024.

How much traffic does Pentz Road over Berry Canyon carry?

About 7,146 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is Pentz Road over Berry Canyon?

The structure is 72 ft (21.9 m) long with a longest span of 28 ft (8.5 m) and a deck 32 ft wide.

Who owns Pentz Road over Berry Canyon?

It is owned by the County Highway Agency.