Structure 1C0011 · Del Norte County, CA

Requa Road over Hunter Creek

Carries Requa Road over Hunter Creek, 0.1 Mi West Of Rt101.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT136 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

136 ft end to end. Lengths and the semi-truck 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 box-beam bridge.

Built1949rebuilt 1958
Length136.5 ft41.6 m
Daily traffic1,110counted 2004
Last inspectedJune 2024every 24 months

Location

StateCalifornia
CountyDel Norte
Location0.1 Mi West Of Rt101
CarriesRequa Road
CrossesHunter Creek
Coordinates41.55340, -124.05757

Physical Characteristics

MaterialConcrete
DesignBox Beam - Multiple
Total Length136.5 ft (41.6 m)
Max Span64.0 ft (19.5 m)
Deck Width27.9 ft (8.5 m)
Deck Area353.6 sq m
Main Spans1
Year Built1949 (reconstructed 1958)

Traffic

Avg Daily Traffic1,110 (2004)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number01C0011

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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