US Bridges

State Route 89 over Markleeville Creek

Fair

Alpine County, California · 10-ALP-089-14.69 · Structure no. 31 0002

Built
1929
96 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Concrete
Length
41 ft
1 main span
Daily traffic
840
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 89 over Markleeville Creek is a concrete tee beam carrying State Route 89 over Markleeville Creek in Alpine County, California. It was built in 1929, so it is 96 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 840 vehicles a day, projected to reach 1,878 by 2045. The structure is 41 ft (12.6 m) long and 28 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

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CarriesState Route 89
CrossesMarkleeville Creek
Location10-ALP-089-14.69
RouteState Highway 89
CountyAlpine County
StateCalifornia
Coordinates38.69363, -119.77809
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating34.3 US tons
Inventory rating20.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length41 ft (12.6 m)
Longest span39 ft (12 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic840 (2009)
Projected traffic1,878 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 Markleeville Creek built?

It was built in 1929, making it 96 years old in 2025.

What condition is State Route 89 over Markleeville Creek 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 October 2023.

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

About 840 vehicles per day (2009 count).

How long is State Route 89 over Markleeville Creek?

The structure is 41 ft (12.6 m) long with a longest span of 39 ft (12 m) and a deck 28 ft wide.

Who owns State Route 89 over Markleeville Creek?

It is owned by the State Highway Agency.