US Bridges

State Route 89 over Graeagle Creek

Good

Plumas County, California · 02-PLU-089-7.29 · Structure no. 09 0029

Built
1954
71 years old
Condition
Good
inspected June 2023
Type
Tee Beam
Concrete Continuous
Length
95 ft
2 main spans
Daily traffic
2,025
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 89 over Graeagle Creek is a concrete continuous tee beam carrying State Route 89 over Graeagle Creek in Plumas County, California. It was built in 1954, so it is 71 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,025 vehicles a day, roughly 16% of them trucks, projected to reach 873 by 2040. The structure is 95 ft (29 m) long and 34 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesState Route 89
CrossesGraeagle Creek
Location02-PLU-089-7.29
RouteState Highway 89
Coordinates39.76492, -120.61726
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length95 ft (29 m)
Longest span46 ft (14 m)
Deck width34 ft (10.5 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,025 (2009)
Projected traffic873 by 2040
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed14.9 mi (24 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 89 over Graeagle Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is State Route 89 over Graeagle Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does State Route 89 over Graeagle Creek carry?

About 2,025 vehicles per day (2009 count), of which roughly 16% are trucks.

How long is State Route 89 over Graeagle Creek?

The structure is 95 ft (29 m) long with a longest span of 46 ft (14 m) and a deck 34 ft wide.

Who owns State Route 89 over Graeagle Creek?

It is owned by the State Highway Agency.