Structure 100000230020010 · Worcester County, MD

Md 90 over ST Martin River

Carries Md 90 over ST Martin River, 2.8 Miles East Of Md 589.

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
4,130 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

4,130 ft end to end, longest span 130 ft: about 11 football fields. 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 multi-beam bridge.

Built1970rebuilt 2004
Length4129.9 ft1258.8 m
Daily traffic31,551counted 2023
Last inspectedNovember 2024every 24 months

Location

StateMaryland
CountyWorcester
Location2.8 Miles East Of Md 589
CarriesMd 90
CrossesST Martin River
Coordinates38.38937, -75.12826

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length4129.9 ft (1258.8 m)
Max Span129.9 ft (39.6 m)
Deck Width41.3 ft (12.6 m)
Deck Area15860.9 sq m
Main Spans3
Year Built1970 (reconstructed 2004)

Traffic

Avg Daily Traffic31,551 (2023)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number100000230020010

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