Structure 1073D017 · New Castle County, DE

Naamans Rd/sr92 WB over Csx Railroad

Carries Naamans Rd/sr92 WB over Csx Railroad, N. Of Claymont.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT155 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

155 ft end to end, longest span 58 ft: 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 multi-beam bridge.

Built199234 years old
Length154.9 ft47.2 m
Daily traffic21,745counted 2021
Last inspectedMarch 2022every 48 months

Location

StateDelaware
CountyNew Castle
LocationN. Of Claymont
CarriesNaamans Rd/sr92 WB
CrossesCsx Railroad
Coordinates39.81903, -75.46399

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length154.9 ft (47.2 m)
Max Span58.1 ft (17.7 m)
Deck Width57.1 ft (17.4 m)
Deck Area821.3 sq m
Main Spans3
Year Built1992

Traffic

Avg Daily Traffic21,745 (2021)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1073D017

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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