Structure 1216 329 · New Castle County, DE

Chambers Rock RD over White Clay Creek

Carries Chambers Rock RD over White Clay Creek, White Clay Creek Preserve.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT69 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

69 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 through truss.

Built1928rebuilt 1995
Length68.9 ft21 m
Daily traffic3,582counted 2022
Last inspectedMarch 2023every 24 months

Location

StateDelaware
CountyNew Castle
LocationWhite Clay Creek Preserve
CarriesChambers Rock RD
CrossesWhite Clay Creek
Coordinates39.73281, -75.75986

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length68.9 ft (21 m)
Max Span66.9 ft (20.4 m)
Deck Width16.4 ft (5 m)
Deck Area105 sq m
Main Spans1
Year Built1928 (reconstructed 1995)

Traffic

Avg Daily Traffic3,582 (2022)
Truck Traffic17%
Lanes On Bridge1

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number1216 329

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.

Nearby Bridges