Structure 3911 036 · Sussex County, DE

SR 36 / Shawnee RD over Johnson Branch

Carries SR 36 / Shawnee RD over Johnson Branch, Southwest Of Milford.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
23 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 6/9 · sets the rating

23 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 slab bridge.

Built194779 years old
Length23.0 ft7 m
Daily traffic3,486counted 2022
Last inspectedJune 2023every 24 months

Location

StateDelaware
CountySussex
LocationSouthwest Of Milford
CarriesSR 36 / Shawnee RD
CrossesJohnson Branch
Coordinates38.87275, -75.47612

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length23.0 ft (7 m)
Max Span21.7 ft (6.6 m)
Deck Width38.1 ft (11.6 m)
Deck Area81.2 sq m
Main Spans1
Year Built1947

Traffic

Avg Daily Traffic3,486 (2022)
Truck Traffic12%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number3911 036

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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