Structure 200000BC2208010 · Baltimore County, MD

Hilton Parkway over Gwynns Falls & Franklin

Carries Hilton Parkway over Gwynns Falls & Franklin, 0.6 Mi N Edmondson AVE.

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 overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT449 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

449 ft end to end, longest span 90 ft: about 6 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 deck arch.

Built1938rebuilt 1991
Length449.1 ft136.9 m
Daily traffic10,900counted 2024
Last inspectedMarch 2024every 24 months

Location

StateMaryland
CountyBaltimore
Location0.6 Mi N Edmondson AVE
CarriesHilton Parkway
CrossesGwynns Falls & Franklin
Coordinates39.30272, -76.67392

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length449.1 ft (136.9 m)
Max Span89.9 ft (27.4 m)
Deck Width68.6 ft (20.9 m)
Deck Area2861.2 sq m
Main Spans5
Year Built1938 (reconstructed 1991)

Traffic

Avg Daily Traffic10,900 (2024)
Truck Traffic5%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number200000BC2208010

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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