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: GREAT SENECA CREEK
1.32 MILES N OF MD 124, Montgomery, MD
Over: PATUXENT RIVER
1.7 MI NORTH OF MD 650, Montgomery, MD
Over: I95 NB-CD
MD200EB Ramp I-A to I95NB, Prince George's, MD
Over: PINE STREET
0.05 MI E of Route 11, Washington, MD
Over: NINEPIN BRANCH
0.76 MI S OF MD 374, Worcester, MD
Over: AMTRAK
0.32 MILE SOUTH OF US 40, Cecil, MD
Over: Canton RR
0.0 MI. S of Keith Ave, Baltimore city, MD
Over: ROCK RUN
0.7 MI SE OF ROCK RUN RD, Harford, MD
Over: WATTS BRANCH
WOOTTONS MILL PARK, Montgomery, MD
Over: MD 200 (ICC)
3.61 MI WEST OF MD650, Montgomery, MD
Over: CSX RAILROAD
0.1 MI EAST OF US 1, Prince George's, MD
Over: TRIBUTARY OF CONOCOCHEAG
0.6 MI WEST OF I-81, Washington, MD
Over: TRIBUTARY OF ANTIETAM CR
.3 MI N OF E OAK RIDGE DR, Washington, MD
Over: GEORGES CREEK
0.02 MI E OF MD 36, Allegany, MD
Over: RED RUN BRANCH
0.9 MI S OF RED RUN BLVD, Baltimore, MD
Over: LITTLE PIPE CREEK
JUST E OF UNION BRIDGE, Carroll, MD
Over: LITTLE CATOCTIN CREEK
AT HARMONY RD INT, Frederick, MD
Over: STOUT BOTTLE BRANCH
0.6 MILES NW OF MD 543, Harford, MD
Over: EXECUTIVE PARK DRIVE
0.91 MILE WEST OF MD 104, Howard, MD
Over: CSX RR, O'CONNOR RD
0.24 M W OF AA CO LINE, Howard, MD
Over: CSX RR, O'CONNOR ROAD
0.24 M W OF AA CO LINE, Howard, MD
Over: SLIGO CREEK
AT SLIGO CR PKWY, Montgomery, MD
Over: BALD HILL BRANCH
1 MI E OF JCT IS 95, Prince George's, MD
Over: CSX TRANS.
1.08 MILES NORTH OF US 11, Washington, MD
Over: LITTLE ANTIETAM CREEK
1.02 MI NW OF MD RTE 67, Washington, MD
Over: LITTLE FALLS
1.2 MI. N MIDDLETOWN ROAD, Baltimore, MD
Over: PEA VINE RUN & BEALS MIL
1063 MILES NORTH OF IS 68, Allegany, MD
Over: MD 170 / AMTRAK
0.9 MI SOUTH OF I-195, Anne Arundel, MD
Over: CSX RAILROAD
0.82 MI S OF UNION CHURCH, Cecil, MD
Over: BASIN RUN
0.19 MI S OF LIBERTY G RD, Cecil, MD
Over: GRINDSTONE RUN
0.75 MI WEST OF MD RTE 17, Frederick, MD
Over: TRIB / L GUNPOWDER FALLS
0.4 MILES N OF POCOCK RD, Harford, MD
Over: SOUTH STIRRUP RUN
0.5 MI E OF SHARON ACR RD, Harford, MD
Over: MD 200 (ICC)
0.59 MI NORTH OF MD 28, Montgomery, MD
Over: MD 200 (ICC) Ramp SE
0.2 mi W US29/MD200 I/C, Montgomery, MD
Over: TRIBUTARY TO BEAVERDAM C
0.03 MI N OF PARKWOOD ST, Prince George's, MD
Over: CABIN BRANCH
0.11 MI N OF STATE STREET, Prince George's, MD
Over: SANG RUN
0.98 MI SW OF BISHOFF RD, Garrett, MD
Over: TRIBUTARY TO DORSEY RUN
.68 M N OF TECHNOLOGY DR, Anne Arundel, MD
Over: BACK RIVER
0.82 MILE EAST OF MD 695, Baltimore, MD
Over: Tradepoint Railroad
0.22 MILE WEST OF MD 151, Baltimore, MD
Over: TRIBUTARY TO GUNPOWDER F
1.3 MILES EAST OF MD 45, Baltimore, MD
Over: MTA LIGHT RAIL
OFFRAMP SB JFX @ CLDSPRNG, Baltimore city, MD
Over: MTA LIGHT RAIL
I-83 AT NORTHERN PKWY, Baltimore city, MD
Over: LOMBARD STREET
Milepost M12.51, Baltimore city, MD
Over: BLUE BLAZES CREEK
US-15N, WEST ON MC-77 TO, Frederick, MD
Over: SAW MILL BRANCH
0.3 MILES NE OF BALT CO, Harford, MD
Over: IS-370 RP1, MD200 RP7
5.67 MI WEST OF MD97, Montgomery, MD
Over: BUCKLODGE BRANCH
2 MILES NORTH OF MD 28, Montgomery, MD
Over: WHETSTONE RUN
0.5 MILES EAST OF MD 355, Montgomery, MD
Showing 4,551-4,600 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 |