Structure 1MD0667 · St. Mary's County, MD

Cedar Point RD over Harpers Creek

Carries Cedar Point RD over Harpers Creek, 0.7 Mi N Of Bronson RD.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,460 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

2,460 ft end to end, longest span 20 ft: about 6.8 football fields. 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.

Built1952rebuilt 1996
Length2460.0 ft749.8 m
Daily traffic1,440counted 2014
Last inspectedJune 2024every 24 months

Location

StateMaryland
CountySt. Mary's
Location0.7 Mi N Of Bronson RD
CarriesCedar Point RD
CrossesHarpers Creek
Coordinates38.30448, -76.40321

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length2460.0 ft (749.8 m)
Max Span20.0 ft (6.1 m)
Deck Width29.9 ft (9.1 m)
Deck Area6823.2 sq m
Main Spans123
Year Built1952 (reconstructed 1996)

Traffic

Avg Daily Traffic1,440 (2014)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerNavy/Marines
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number1MD0667

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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