Structure 2019B019 · Kent County, DE

Thompsonville RD over Sr1 / Bay RD

Carries Thompsonville RD over Sr1 / Bay RD, North Of Milford.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT230 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

230 ft end to end, longest span 114 ft: about 3 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.

Built201610 years old
Length230.3 ft70.2 m
Daily traffic2,977counted 2021
Last inspectedNovember 2022every 48 months

Location

StateDelaware
CountyKent
LocationNorth Of Milford
CarriesThompsonville RD
CrossesSr1 / Bay RD
Coordinates38.95725, -75.42789

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length230.3 ft (70.2 m)
Max Span113.8 ft (34.7 m)
Deck Width58.7 ft (17.9 m)
Deck Area1256.6 sq m
Main Spans2
Year Built2016

Traffic

Avg Daily Traffic2,977 (2021)
Truck Traffic9%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionNovember 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number2019B019

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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