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: BALLENGER CREEK
1.95 MILES SOUTH OF IS 70, Frederick, MD
Over: BENS BRANCH
0.19 MI S OF MD 874C, Frederick, MD
Over: LINGANORE CREEK
0.22 M W OF BR NO 1016800, Frederick, MD
Over: BRANCH OF LINGANORE CREE
0.58 M W ALBAUGH ROAD, Frederick, MD
Over: FRIENDS CREEK
0.15 M S OF BENTZEL ROAD, Frederick, MD
Over: MONOCACY RIVER
3 MI N OF WOODSBORO, Frederick, MD
Over: BENNETT CREEK
2.75 MI SOUTH OF MD 80, Frederick, MD
Over: ROCK CREEK
500' W OF WILLOWDALE DR., Frederick, MD
Over: CARROLL CREEK FLOODPLAIN
0.2 MI NORTH OF MD 144, Frederick, MD
Over: ROCK CREEK
0.2 MI. NORTH OF US 40, Frederick, MD
Over: EDISON BRANCH
2.7 MI. WEST OF US 15, Frederick, MD
Over: OPOSSUM BRANCH
0.7 MILES WEST OF US 15, Frederick, MD
Over: EDISON BRANCH
1.3 MI WEST OF US 15, Frederick, MD
Over: DUBLIN BRANCH
1.5 MI E OF US RTE 15, Frederick, MD
Over: CRABTREE CREEK
0.03 MI E SPRING LICK RD, Garrett, MD
Over: MIDDLE FORK
0.7 MI N OF SPRING LICK R, Garrett, MD
Over: BEAR CREEK
0.04 MI NE OF PARK AVE, Garrett, MD
Over: BEAR CREEK
0.17 MI SE WALNUT ST, Garrett, MD
Over: BEAR CREEK
0.1 MI SW ACC BEAR CR RD, Garrett, MD
Over: WINTERS RUN
0.87 MILE NORTH OF US 1, Harford, MD
Over: BYNUM RUN
0.25 MILE NORTH OF MD 24, Harford, MD
Over: BROAD CREEK
0.4 MILE NORTH OF MD 543, Harford, MD
Over: SWAN CREEK
0.84 MILE NORTH OF MD 22, Harford, MD
Over: DEER CREEK
1.47 MILES S OF MD 440, Harford, MD
Over: WINTERS RUN
0.2 MILES S OF US 1, Harford, MD
Over: MA & PA RAILROAD (ABAND)
0.3 MILES S OF MD 152, Harford, MD
Over: MOUNTAIN BRANCH
0.3 MILES W OF SINGER RD, Harford, MD
Over: GRAYS RUN
Milepost M83.1, Harford, MD
Over: SUSQUEHANNA RIVER,PA RR
HARFORD-CECIL CO LINE, Harford, MD
Over: GUILFORD BRANCH
0.26 M S OF GUILFORD ROAD, Howard, MD
Over: SOUTH BR PATAPSCO RIVER
ON CARROLL CO LINE, Howard, MD
Over: PEDESTRIAN WALKWAY
1.56 MILES N OF MD 175HC, Howard, MD
Over: GUILFORD BRANCH
0.05 MILE EAST OF US 1, Howard, MD
Over: GUILFORD BRANCH
0.418 MILE SOUTH OF US 1, Howard, MD
Over: MIDDLE PATUXENT RIVER
2.7 MI S OF MD RTE 144, Howard, MD
Over: CATTAIL CREEK
0.1 MI W CARRS MILL RD, Howard, MD
Over: LITTLE PATUXENT RIVER
0.5 MI E CENTENNIAL LANE, Howard, MD
Over: MIDDLE PATUXENT RIVER
0.01 MI E OF US RTE 29, Howard, MD
Over: HAMMOND BRANCH
0.18 MI N OF FULTON RD, Howard, MD
Over: SHIPYARD CREEK
1.20 MILES WEST OF MD 21, Kent, MD
Over: RADCLIFF CREEK
0.82 MILE SOUTH OF MD 213, Kent, MD
Over: HERRING BRANCH
0.46 M S OF CECIL CO LINE, Kent, MD
Over: SPILLWAY OF CHESTER RIVE
0.12 M S OF COLLINS AVE, Kent, MD
Over: CYPRESS BRANCH
0.4 MI S OF MD RTE 330, Kent, MD
Over: STONEY CREEK
10M W STONE LAKE RD, Montgomery, MD
Over: WATTS BRANCH
0.18 MILE WEST OF IS 270, Montgomery, MD
Over: NORTHWEST BRANCH
0.27 M S OF LOCKWOOD DR, Montgomery, MD
Over: DRY SENECA CREEK
1.4 MILES WEST OF MD 28, Montgomery, MD
Over: ROCK CREEK
0.34 M E OF OLDE MILL RUN, Montgomery, MD
Over: GREAT SENECA CREEK
0.23 MI S OF WATKINS RD, Montgomery, MD
Showing 1,801-1,850 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 |