Total Bridges
5,527
Public highway bridges in Maryland
State profile · Below national median SD
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Maryland — drawn straight from the FHWA National Bridge Inventory.
Total Bridges
5,527
Public highway bridges in Maryland
Good Condition
25.9%
1,432 bridges rated 7-9
-24.1pp vs 50% benchmark
Poor Condition
4.3%
236 bridges rated 0-4
Structurally Deficient
4.3%
236 bridges flagged for repair priority
-2.7pp vs national avg 7.0%
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Maryland on the same metric.
09
47
24
08
41
Six lowest-condition bridges in Maryland, ranked by composite NBI rating. Each is inspected at least every 24 months.
Over: BEAR CREEK
0.01 MI N OF WALNUT ST, Garrett, MD
Over: HAWLINGS RIVER
2.8 MILES NORTH OF MD 108, Montgomery, MD
Over: BEAVER CREEK
0.1 MI W OF ALT US RTE 40, Washington, MD
Over: WATERSPOUT RUN
2.63 MI. WEST MD 25, Baltimore, MD
Over: CSX RAILROAD
0.1 MI NW OF US RTE 40, Baltimore, MD
Over: LITTLE PATUXENT RIVER
0.5 MI W OF US RTE 29, Howard, MD
Over: BEAVER CREEK
0.2 MI S OF MD RTE 844, Washington, MD
Over: STEMMERS RUN
0.14 MI S OF ROSSVIL BLVD, Baltimore, MD
Over: BRIEN RUN
0.60 MI S OF US 40, Baltimore, MD
Over: Maryland Midland Railway
0.1 MI SE OF MD 194, Carroll, MD
Over: CATOCTIN CREEK
0.5 MI W OF OLD HAGERSTOW, Frederick, MD
Over: MILL RUN
0.01 MI S MILL RUN ROAD, Garrett, MD
Over: OVERSHOT BRANCH
1.0 MILES S OF MD 152, Harford, MD
Over: GRAYS INN CREEK
0.25 MILE WEST OF MD 20, Kent, MD
Over: OWENS CREEK
0.87 MILES SOUTH OF MD 77, Frederick, MD
Over: HAWLINGS RIVER
1 MI W OF JCT SR 650, Montgomery, MD
Over: MATAPONI CREEK
0.65 MI SW OF MD 382, Prince George's, MD
Over: WESTERN RUN
0.75 MILE NORTH OF MD 145, Baltimore, MD
Over: FORMER HUTZLER'S DEPARTM
E OF DULANEY VALLEY RD, Baltimore, MD
Over: SCOTTS LEVEL BRANCH
0.4 MI S OF WINANDS RD, Baltimore, MD
Over: TRIBUTARY TO HERRING RUN
0.20 MI E OF OAKLEIGH RD, Baltimore, MD
Over: BIG PIPE CREEK
0.62 MI N OF SAW MILL RD, Carroll, MD
Over: TRIBUTARY OF PINEY RUN
1.06 MI N RAINCLIFFE ROAD, Carroll, MD
Over: BR OF MORGAN CREEK
0.3 M N OF BIG WOOD ROAD, Kent, MD
Over: GUNPOWDER FALLS
0.6 MI SW BUNKER HILL RD, Baltimore, MD
Over: SOUTH BRANCH CASSELMAN R
0.06 MI E BEAR HILL RD, Garrett, MD
Over: Rockville Center Multipl
0.5 Miles West of Md. 355, Montgomery, MD
Over: SHERRICKS RUN
0.16km (0.1 MILES) TO ROH, Washington, MD
Over: TOMS CREEK
0.5 MILES S OF SIXES ROAD, Frederick, MD
Over: LITTLE PIPE CREEK
1.12 MI N OF GOOD INTENT, Frederick, MD
Over: ROBERT FULTON DRIVE
1.0 MI S OF MD RTE 175, Howard, MD
Over: TANHOUSE CREEK
1.29 MI SW OF MD 365, Worcester, MD
Over: MAGOTHY RIVER
0.84 MI N OF MD 648D, Anne Arundel, MD
Over: BIG PATUXENT RIVER
0.8 MILES NORTH OF MD ROU, Anne Arundel, MD
Over: BR OF LONG GREEN CREEK
0.46 MI N OF SHARON DR, Baltimore, MD
Over: PRINCIPIO CREEK
0.12 MI S OF RED TOAD RD, Cecil, MD
Over: MONOCACY RIVER
2.5 MI S OF KEYSVILLE RD, Frederick, MD
Over: BR OF DRY SENECA CREEK
0.98 MILE WEST OF MD 117, Montgomery, MD
Over: CLARA BARTON PARKWAY
0.7 MILES WEST OF MACARTH, Montgomery, MD
Over: PARKING GARAGE
1 KM W OF RT. 185, Montgomery, MD
Over: MCGILL RUN
3.00 MI W OF MD 25, Baltimore, MD
Over: TRIBUTARY TO BRIEN RUN
0.1 MI NE OF ROSSVILLE BL, Baltimore, MD
Over: MORGAN RUN
250 FT S OF SALEM BOTTOM, Carroll, MD
Over: CATOCTIN CREEK
0.6 M S OF MAERK ROAD, Frederick, MD
Over: COLLINGTON BRANCH
0.18 MILE WEST OF MD 214, Prince George's, MD
Over: CABIN BRANCH
1.61 MILES N OF MD 725, Prince George's, MD
Over: PAINT BRANCH
0.1 MILES NE N AVE, Prince George's, MD
Over: JENNINGS RUN
1.3 MI W OF MD 35, Allegany, MD
Over: WESTERN RUN
0.1 MI N CROSS COUNTRY BL, Baltimore city, MD
Over: STONY RUN
OVERHILL RD OV STONY RUN, Baltimore city, MD
Over: MARYLAND MIDLAND RR
.12 MILE SOUTH OF MD 852G, Carroll, MD
Over: SILVER RUN
0.05 MI N OF MAYBERRY RD, Carroll, MD
Over: NORTHEAST CREEK
0.1 MILE NORTH OF MD 7C, Cecil, MD
Over: CABIN JOHN CREEK & CABIN
1.6 MILES SOUTH OF I-495., Montgomery, MD
Over: BW PARKWAY
0.4 MILES NORTH OF I-95, Prince George's, MD
Over: ACCESS RAMP TO BW PARKWA
0.6 MILES SOUTH OF MD ROU, Prince George's, MD
Showing 1,201-1,250 of 5,527 bridges
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |