Structure 12C0287 · Butte County, CA

Myers Street over Ostap Arch

Carries Myers Street over Ostap Arch, Btw Mitchell Av & Oro Blv.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 7/9

31 ft end to end. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a deck arch.

Built1915rebuilt 1982
Length30.8 ft9.4 m
Daily traffic5,462counted 2019
Last inspectedMarch 2023every 24 months

Location

StateCalifornia
CountyButte
LocationBtw Mitchell Av & Oro Blv
CarriesMyers Street
CrossesOstap Arch
Coordinates39.50623, -121.55080

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length30.8 ft (9.4 m)
Max Span28.9 ft (8.8 m)
Deck Width47.2 ft (14.4 m)
Deck Area135.4 sq m
Main Spans1
Year Built1915 (reconstructed 1982)

Traffic

Avg Daily Traffic5,462 (2019)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number12C0287

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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