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: CARSINS RUN
Milepost M85.6, Harford, MD
Over: LITTLE PATUXENT RIVER
0.03 MI N OF GORMAN RD, Howard, MD
Over: CSX TRANSPORTATION RR
0.18 MILE SOUTH OF US 1, Prince George's, MD
Over: CSX TRANSPORTATION
0.16 MILE WEST OF MD 197, Prince George's, MD
Over: I-95
0.9 mi S of Van Dusen Rd, Prince George's, MD
Over: ST CLEMENTS CREEK
0.52 MILE NORTH OF MD 234, St. Mary's, MD
Over: ISRAEL CREEK
0.1M W OF ROHRERSVILLE RD, Washington, MD
Over: FISHING CREEK
0.3 MI S OF MD 260, Calvert, MD
Over: MATTAWOMAN CREEK
1.14 MI EAST OF US 301, Prince George's, MD
Over: BATTLE CREEK
1.77 MI E OF SIXES ROAD, Calvert, MD
Over: INDIAN RUN
0.645 M S OF MD 482, Carroll, MD
Over: TRIB TO NORTHEAST RIVER
0.5 MI N OF MD 7, Cecil, MD
Over: WALLACE CREEK
0.47 MILE SOUTH OF MD 336, Dorchester, MD
Over: BRANCH OF BUSH CREEK
500' SOUTH OF WESTWIND DR, Frederick, MD
Over: N FORK CRABTREE CREEK
3.28 MILES N OF MD 135, Garrett, MD
Over: CARSINS RUN
0.5 MILES N OF MD 22, Harford, MD
Over: LAFAYETTE AVE, CSX TRANS
0.26 MILE WEST OF MD 197, Prince George's, MD
Over: LAFAYETTE AVE, CSX TRANS
0.26 MILE WEST OF MD 197, Prince George's, MD
Over: LITTLE TONOLOWAY CREEK
1.46 MILES E OF MD 144WB, Washington, MD
Over: TRIBUTARY TO WHITE MARSH
0.5 Miles East of US 40, Baltimore, MD
Over: US 301
2.5 MI E OF MD 213, Queen Anne's, MD
Over: BRANCH OF WILLS CREEK
0.17 MI S OF PA LINE, Allegany, MD
Over: WHITE MARSH RUN
0.197 MILE EAST OF US 40, Baltimore, MD
Over: GWYNN FALLS
0.5 MI SW REISTERSTOWN RD, Baltimore, MD
Over: SILVER RUN
0.47 MI N OF MAYBERRY RD, Carroll, MD
Over: WEST BRANCH PATAPSCO RIV
0.09 MI W OF DUTROW ROAD, Carroll, MD
Over: BROAD RUN
0.85 MI WEST OF MD 383, Frederick, MD
Over: TRIBUTARY OF TUSCARORA C
WEST OF THOMAS JOHNSON DR, Frederick, MD
Over: SAVAGE RIVER
0.02 MI W SAVAGE RIVER RD, Garrett, MD
Over: RIV RD,CSX,PATAPSCO RIV
ON CARROLL COUNTY LINE, Howard, MD
Over: HAMMOND BRANCH
0.3 M N WHISKEY BOTTOM RD, Howard, MD
Over: CSXT RAILROAD
0.14 MILE NORTH OF MD 547, Montgomery, MD
Over: SAM EIG HIGHWAY
0.5 MI WEST OF I-270, Montgomery, MD
Over: NORTH BRANCH ROCK CREEK
1.51 MI W OF MD 97, Montgomery, MD
Over: ROCK CREEK
0.27 M N OF BDN NAYLOR RD, Prince George's, MD
Over: LITTLE NORTHEAST CREEK
0.41 MI N OF US 40, Cecil, MD
Over: SAWMILL CREEK
0.09 MI N OF MD 270, Anne Arundel, MD
Over: JUMPERS HOLE ROAD
0.05 MI S OF MD 100, Anne Arundel, MD
Over: MIDDLE RIVER
0.27 MI SW OF MD 700, Baltimore, MD
Over: PATAPSCO RIVER
ON HOWARD CO LINE, Baltimore, MD
Over: LITTLE PINEY RUN
0.4 MI. W DARK HOLLOW RD, Baltimore, MD
Over: BIG ELK CREEK
0.39 MILE EAST OF MD 7D, Cecil, MD
Over: MIDDLE CREEK
1.55 M N OF CROW ROCK RD, Frederick, MD
Over: BALLENGER CREEK
1.42 MI. SOUTH OF I-70, Frederick, MD
Over: BENS BRANCH
0.2 MILES SW OF MD 75, Frederick, MD
Over: YOUGHIOGHENY RIVER
0.1 M E INT MAPLE GLADE, Garrett, MD
Over: CSX TRANSPORTATION
0.25 MILE NORTH OF US 40, Harford, MD
Over: TRIB TO BONNIE BR
75' W of Bonnie Branch Rd, Howard, MD
Over: US 29 & Ramp SE, NB&EB
0.7 mi W of Briggs Chaney, Montgomery, MD
Over: OXON RUN
0.10 MI SE OF WASH DC LN, Prince George's, MD
Showing 4,151-4,200 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 |