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: MIDDLE PATUXENT RIVER
0.18 MILE NORTH OF IS 95I, Howard, MD
Over: LITTLE PATUXENT RIVER
0.46 MILE SOUTH OF MD 32, Howard, MD
Over: TERRAPIN BRANCH
0.02 MILE WEST OF MD 32, Howard, MD
Over: BRANCH OF LITTLE PATUXEN
0.01 MI N MD RTE 108, Howard, MD
Over: WEST FORK LANGFORD CREEK
0.1 MI E SANDY BOTTOM RD, Kent, MD
Over: SLIGO CREEK
0.69 MILE SOUTH OF MD 193, Montgomery, MD
Over: WILLET BRANCH
0.1 MI N DORSET AVE, Montgomery, MD
Over: TRIB TO PAINT BRANCH
.1 MI S OF PAINT BR PKWY, Prince George's, MD
Over: ISRAEL CRK, APPALA. TRL.
0.18 MILE EAST OF MD 67, Washington, MD
Over: SEMPLE RUN
.5 MI W. OF I70, Washington, MD
Over: BARREN CREEK
0.26 MILE EAST OF MD 313, Wicomico, MD
Over: PUSEY BRANCH
0.25 MI N OF SAND ROAD, Worcester, MD
Over: CENTRE ST, QUEEN CITY DR
0.52 MI E OF US 48H, Allegany, MD
Over: PEA VINE RUN
0.80 MI W OF MD 807, Allegany, MD
Over: HALL CREEK
1.0 MI WEST OF MD RTE 2, Anne Arundel, MD
Over: HERBERT RUN
I-895 Milepost 2.0, Baltimore, MD
Over: HERBERT RUN
Milepost M2.0, Baltimore, MD
Over: HERRING RUN
0.2 MI N BELVEDERE AVE, Baltimore city, MD
Over: WESTERN RUN
0.03 MI W SMITH AVE-FALLS, Baltimore city, MD
Over: GREENE'S BRANCH
0.03 MI N PAPER MILL RD, Baltimore city, MD
Over: FROM KEITH AVE SPUR
Milepost M56.6, Baltimore city, MD
Over: CHILDS ST, RR
Milepost M8.33, Baltimore city, MD
Over: BIG PIPE CREEK
1.02 MILE NORTH OF MD 140, Carroll, MD
Over: BUCKHORN RUN
0.75 MI E OF FRETER ROAD, Carroll, MD
Over: BR OF HONGA RIVER
1.76 MILE SOUTH OF MD 336, Dorchester, MD
Over: GREAT MARSH CREEK
2.15 MILE SOUTH OF MD 336, Dorchester, MD
Over: WARWICK RIVER
N OF SECRETARY, Dorchester, MD
Over: MONOCACY RIVER
1.5 MILES SOUTH OF I-70, Frederick, MD
Over: MONOCACY RIVER
0.18 MI W OF DUBLIN ROAD, Frederick, MD
Over: N BRANCH POTOMAC RIVER
ON WEST VIRGINIA LINE, Garrett, MD
Over: CARSINS RUN
0.66 MILE NORTH OF MD 22, Harford, MD
Over: BIG BRANCH
0.5 MILES N OF MD 136, Harford, MD
Over: EASTERN NECK NARROWS
EASTERN NECK ISLAND ROAD, Kent, MD
Over: SHADY BRANCH
0.3 M S OF SAM EIG HWY, Montgomery, MD
Over: NORTHEAST BRANCH
0.45 MILE NORTH OF MD 450, Prince George's, MD
Over: BR OF SOUTHWEST BR
0.08 MILE SOUTH OF MD 214, Prince George's, MD
Over: BURCH BRANCH
1.77 MILES EAST OF MD 223, Prince George's, MD
Over: GERMAN BRANCH
2 MI FROM MD RTE 405, Queen Anne's, MD
Over: WHITEHALL RD
1.05 MILES WEST OF MD 66, Washington, MD
Over: WHITEHALL RD
1.05 MILES WEST OF MD 66, Washington, MD
Over: LAUREL RUN
1.26 MI W OF MD RTE 935, Allegany, MD
Over: BOULTERS WAY
1.38 MI E OF MD 783, Anne Arundel, MD
Over: COLLEGE CREEK
0.42 MI S OF MD 435, Anne Arundel, MD
Over: INDIAN RUN
0.05 MILE WEST OF MD 25, Baltimore, MD
Over: NORTH BRANCH
1.50 MILE EAST OF MD 129, Baltimore, MD
Over: SECOND MINE BRANCH
100 FT NW WHITEHALL RD, Baltimore, MD
Over: GUNPOWDER FALLS
1.1 MI S MIDDLETOWN RD, Baltimore, MD
Over: CALVERT ACCESS ROAD S
Milepost M1.8, Baltimore, MD
Over: CALVERT ACCESS ROAD S
Milepost M1.8, Baltimore, MD
Over: JONES FALLS
0.3 MI E GAY ST, Baltimore city, MD
Showing 2,751-2,800 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 |