Structure 300000B-X617010 · Baltimore County, MD

Chesaco Avenue over I-95

Carries Chesaco Avenue over I-95, Milepost M61.7.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT251 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

251 ft end to end, longest span 129 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.

Built1996rebuilt 2007
Length250.7 ft76.4 m
Daily traffic12,525counted 2019
Last inspectedAugust 2023every 24 months

Location

StateMaryland
CountyBaltimore
LocationMilepost M61.7
CarriesChesaco Avenue
CrossesI-95
Coordinates39.33044, -76.52259

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length250.7 ft (76.4 m)
Max Span128.9 ft (39.3 m)
Deck Width61.4 ft (18.7 m)
Deck Area1428.7 sq m
Main Spans2
Year Built1996 (reconstructed 2007)

Traffic

Avg Daily Traffic12,525 (2019)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge10

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number300000B-X617010

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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