US Bridges

State Route 299 over Whiskey Creek(wskytwn Lk

Poor

Shasta County, California · 02-SHA-299-14.17 · Structure no. 06 0096

Built
1961
64 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
875 ft
3 main spans
Daily traffic
4,050
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 299 over Whiskey Creek(wskytwn Lk is a steel continuous stringer/multi-beam or girder carrying State Route 299 over Whiskey Creek(wskytwn Lk in Shasta County, California. It was built in 1961, so it is 64 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 4,050 vehicles a day, roughly 18% of them trucks, projected to reach 6,039 by 2041. The structure is 875 ft (266.6 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesState Route 299
CrossesWhiskey Creek(wskytwn Lk
Location02-SHA-299-14.17
RouteState Highway 299
Coordinates40.63222, -122.55617
Functional classRural Principal Arterial - Other

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.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be 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 rating37.8 US tons
Inventory rating29.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length875 ft (266.6 m)
Longest span350 ft (106.7 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,050 (2009)
Projected traffic6,039 by 2041
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$10.7 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 299 over Whiskey Creek(wskytwn Lk built?

It was built in 1961, making it 64 years old in 2025.

What condition is State Route 299 over Whiskey Creek(wskytwn Lk 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 State Route 299 over Whiskey Creek(wskytwn Lk carry?

About 4,050 vehicles per day (2009 count), of which roughly 18% are trucks.

How long is State Route 299 over Whiskey Creek(wskytwn Lk?

The structure is 875 ft (266.6 m) long with a longest span of 350 ft (106.7 m) and a deck 34 ft wide.

Who owns State Route 299 over Whiskey Creek(wskytwn Lk?

It is owned by the State Highway Agency.