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: NASSAWANGO CREEK
1.10 MI SW OF MD 12, Worcester, MD
Over: COONFOOT BRANCH
0.76 MI N OF US RTE 113, Worcester, MD
Over: TOWN CREEK
1.95 MI N OF L TOWN CK RD, Allegany, MD
Over: TOWN BRANCH
0.2 MI WEST OF MD 75, Frederick, MD
Over: BROAD CREEK
2.63 MI S OF PA LINE, Harford, MD
Over: OLD MONT. RD & DEEP RUN
0.62 MILE WEST OF MD 103, Howard, MD
Over: I-370 RAMP M(3)
.23 MI E OF MD 355, Montgomery, MD
Over: BRANCHVILLE ROAD
.04 MILES N OF MD 193, Prince George's, MD
Over: STREET ROAD
0.92 M E OF BR NO 0114600, Allegany, MD
Over: BRADDOCK RUN
0.14 MI NW OF US 40 ALT, Allegany, MD
Over: TRIBUTARY TO SEVERN RUN
0.19 MI. N. OF MD 174, Anne Arundel, MD
Over: BROAD RUN
0.2 MI. E. OF SCHUCKS RD, Harford, MD
Over: NORTHWEST BRANCH
0.10 MILE EAST OF MD 501, Prince George's, MD
Over: TRIB / LITTLE DEER CREEK
0.5 MILES N OF LEMON RD, Harford, MD
Over: Carey Branch
1.5 MILE SOUTH OF I-495, Prince George's, MD
Over: JENNINGS RUN
0.12 MI N OF MD 35, Allegany, MD
Over: TRIBUTARY TO GUNPOWDER F
0.5 MI. NE OF SR 45, Baltimore, MD
Over: TROUT RUN
0.9 MILES EAST OF US 219, Garrett, MD
Over: STILL CREEK
1.2 MI FROM GREENBELT RD, Prince George's, MD
Over: RICE ROAD
1.71 MILES EAST OF MD 903, Washington, MD
Over: ROCK CREEK TRIBUTARY
0.07 MILE WEST OF MD28, Montgomery, MD
Over: STEMMERS RUN
I-95/I-695 Interchange, Baltimore, MD
Over: LITTLE BENNETT CREEK
1.8 MI S OF PETERS RD, Frederick, MD
Over: WEST BRANCH/ WINTERS RUN
0.2 MILES E OF MD 146, Harford, MD
Over: BRANCH OF BEAVERDAM RUN
RP FR PADONIA TO I 83 SB, Baltimore, MD
Over: TRIBUTARY TO HALL CREEK
1.10 MI EAST OF MD 4, Calvert, MD
Over: PRINCIPIO CREEK
0.06 MI N OF PRINCIPIO RD, Cecil, MD
Over: CARROLL CREEK
0.02 M E OF BENTZ ST, Frederick, MD
Over: BROAD CREEK
2.2 MILES SW OF MD 136, Harford, MD
Over: BROAD RUN TRIBUTARY
1 MI W OF ELGIN ROAD, Montgomery, MD
Over: NURSERY RUN
0.98 MILES EAST OF MD 182, Montgomery, MD
Over: Ramp NB to Briggs Chaney
0.8 Mi S Briggs Chaney Rd, Montgomery, MD
Over: BLOCKSTON BRANCH
2.55 MILES S OF MD 304, Queen Anne's, MD
Over: CSX
FORT AVENUE OVER CSX RR, Baltimore city, MD
Over: GREAT SENECA CREEK
.6 MI SE OF BLUNT ROAD, Montgomery, MD
Over: HOURLY PARKING GARAGE
BWI HOURLY PARK GARAGE, Anne Arundel, MD
Over: CSX TRANSPORTATION
0.16 MILE NORTH OF IS 95, Cecil, MD
Over: MONOCACY RIVER
ON CARROLL CO LINE, Frederick, MD
Over: BENS BRANCH
0.5 MI WEST OF MD 75, Frederick, MD
Over: TRIB / THOMAS RUN
0.8 MILES SE OF US 1, Harford, MD
Over: SELBY BAY
0.40 MI E OF MD 214, Anne Arundel, MD
Over: ROLAND RUN
0.4 MI S OF TIMONIUM RD, Baltimore, MD
Over: FISHING CREEK
0.44 MI S OF KAPPOPOS WAY, Calvert, MD
Over: WATERFORD BRANCH
0.1 MI. W. OF MD 2/MD 4, Calvert, MD
Over: WOODVILLE BRANCH
AT MATTIE HAINES RD INTER, Frederick, MD
Over: OAKMONT AVENUE
0.37 MILE EAST OF MD 355, Montgomery, MD
Over: RED LION BRANCH
.84 MI. NE OF MD 290, Queen Anne's, MD
Over: INDIAN CREEK
0.84 MI W OF MD 201, Prince George's, MD
Over: DEER CREEK
0.8 MILES N OF MD 165, Harford, MD
Over: DORSEY BRANCH
800 FT S OF MD 175, Howard, MD
Showing 4,851-4,900 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 |