Structure 41C09 42701 001 · Lincoln County, OR

Chitwood RD over Yaquina River

Carries Chitwood RD over Yaquina River, 0001 M S HWY 20 In Chitwd.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT162 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

162 ft end to end: about 2 semi-trucks nose to tail. 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 through truss.

Built1926rebuilt 2015
Length162.1 ft49.4 m
Daily traffic65counted 2020
Last inspectedSeptember 2024every 24 months

Location

StateOregon
CountyLincoln
Location0001 M S HWY 20 In Chitwd
CarriesChitwood RD
CrossesYaquina River
Coordinates44.65425, -123.81781

Physical Characteristics

MaterialWood or Timber
DesignTruss - Thru
Total Length162.1 ft (49.4 m)
Max Span96.1 ft (29.3 m)
Deck Width16.1 ft (4.9 m)
Deck Area242.1 sq m
Main Spans1
Year Built1926 (reconstructed 2015)

Traffic

Avg Daily Traffic65 (2020)
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour CriticalUnknown
Structure Number41C09 42701 001

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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