Structure 100000060001010 · Carroll County, MD

Md 26 over Liberty Reservoir

Carries Md 26 over Liberty Reservoir, 1.04 M W Of Balto Co Line.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT985 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

985 ft end to end, longest span 74 ft: about 2.7 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.

Built1954rebuilt 1982
Length984.9 ft300.2 m
Daily traffic20,192counted 2009
Last inspectedJune 2023every 24 months

Location

StateMaryland
CountyCarroll
Location1.04 M W Of Balto Co Line
CarriesMd 26
CrossesLiberty Reservoir
Coordinates39.39536, -76.90703

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length984.9 ft (300.2 m)
Max Span74.1 ft (22.6 m)
Deck Width39.0 ft (11.9 m)
Deck Area3572.4 sq m
Main Spans13
Year Built1954 (reconstructed 1982)

Traffic

Avg Daily Traffic20,192 (2009)
Truck Traffic8%
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 Critical8 — Stable, low risk
Structure Number100000060001010

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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