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: BROAD CREEK
1.35 MILES S OF MD 646, Harford, MD
Over: UNNAMED STREAM
0.3 MI E OF LOUDON AVE, Howard, MD
Over: ROCK CREEK NORTH BRANCH
N OF BOWIE MILL ROAD, Montgomery, MD
Over: SOUTHWEST BRANCH
0.25 MILE SOUTH OF MD 214, Prince George's, MD
Over: MUIRKIRK BR OF INDIAN CR
0.04 MI W OF US 1, Prince George's, MD
Over: BALD HILL BRANCH
0.2 M W OF LOTTSFORD RD, Prince George's, MD
Over: NORFOLK SOUTHERN RR
0.40 MILE NORTH OF MD 364, Somerset, MD
Over: LITTLE ANNEMESSEX RIVER
0.52 MILE WEST OF MD 413, Somerset, MD
Over: BOLINGBROKE CREEK
2 MI SE OF TRAPPE, Talbot, MD
Over: BRADDOCK RUN
0.03 MI S OF US 40L, Allegany, MD
Over: C&O CANAL
0.4 miles from MD Route 5, Allegany, MD
Over: AMTRAK RAILROAD
0.06 MI E OF IS 695, Baltimore, MD
Over: GWYNNS FALLS
1 MI N OF REISTERSTOWN RD, Baltimore, MD
Over: CHOPTANK RIVER
0.12 M W OFMARKET ST, Caroline, MD
Over: STREAM
Milepost M98.6, Cecil, MD
Over: HOPKINS BRANCH
1.0 MILES E OF MD 136, Harford, MD
Over: LITTLE SENECA CREEK
1.0 MILES WEST OF MD 355, Montgomery, MD
Over: INDIAN CREEK
0.16 MI NW OF MD 193, Prince George's, MD
Over: MD ROUTE 202
0.8 MILES NORTH OF MD ROU, Prince George's, MD
Over: ANDREWS AFB ACCESS ROAD
0.1 MILES WEST OF MD ROUT, Prince George's, MD
Over: BRANCH JARBOESVILLE RUN
0.9 MI SOUTHWEST RT.235, St. Mary's, MD
Over: GWYNNS FALLS
@ IS 795 & IS 695, Baltimore, MD
Over: JONES FALLS
NORTHRN PKWY RAMP TO I-83, Baltimore city, MD
Over: BENNETT CREEK
0.75 MI S OF PETERS RD, Frederick, MD
Over: OWENS CREEK
0.25 MI NW OF MD 550, Frederick, MD
Over: SOUTHWEST BRANCH
0.04 MI S OF MD 202, Prince George's, MD
Over: CSX TRANSPORTATION
0.71 MILE NORTH OF IS 695, Baltimore, MD
Over: MINEBANK RUN
0.11 M N OF CROMWEL BR RD, Baltimore, MD
Over: CSX RR, BERNARD DR
Milepost M51.0, Baltimore city, MD
Over: LITTLE OWENS CREEK
1.74 MILE NORTH OF MD 550, Frederick, MD
Over: CARROLL CREEK
470' SOUTH OF SR 144, Frederick, MD
Over: BEAR CABIN BRANCH
0.03 MI N OF TIMBERLEA DR, Harford, MD
Over: TRIB. TO PATUXENT RIVER
0.2 MI W OF NICHOLS DRIV, Howard, MD
Over: LITTLE BENNETT CREEK
UNDER IS 270 OVERPASS, Montgomery, MD
Over: WHETSTONE RUN TRIBUTARY
.25 MI N OF MIDCOUNTY HWY, Montgomery, MD
Over: GERMAN BRANCH
0.1 MI. SW OF MOORES LN, Queen Anne's, MD
Over: UPPER THOROFARE
0.36 MILE E OF HOTEL RD, Somerset, MD
Over: LITTLE TONOLOWAY CREEK
0.01 MILE WEST OF US 522, Washington, MD
Over: BACK CREEK
0.1 MI. S. OF MD 710, Anne Arundel, MD
Over: 28TH ST AND NS RAILROAD
0.4 MI N OF NORTH AVE, Baltimore city, MD
Over: PLUM CREEK
2.5 + S OF ELKTON, Cecil, MD
Over: SANDY BRANCH
0.35 MI S OF BUNKER HI RD, Cecil, MD
Over: LITTLE DEER CREEK
0.3 MILE S OF MT HOREB RD, Harford, MD
Over: WILDCAT BRANCH
2.4 MI SW OF MD 124, Montgomery, MD
Over: GRAVEL RUN
0.22 MILE SOUTH OF MD 305, Queen Anne's, MD
Over: BRADDOCK RUN
0.20 MI NE OF US 40 ALT, Allegany, MD
Over: HERBERT RUN
RP 3 TO LEEDS AVE, Baltimore, MD
Over: HERRING RUN
1 MI E ERDMAN AVE, Baltimore city, MD
Over: PINEY RUN
0.13 MI N HOWARD CO LINE, Carroll, MD
Over: SAVAGE RIVER
2.1 MI E SPRING LICK RD, Garrett, MD
Showing 3,251-3,300 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 |