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: TRIB TO NORTH BR POTOMAC
1.46 MI N OF MD 830A, Allegany, MD
Over: TRIBUTARY TO BRICE RUN
0.92 MI S OF MD 26, Baltimore, MD
Over: PATUXENT RIVER & TOWN CR
ON ST MARYS CO LINE, Calvert, MD
Over: ALLOWAY CREEK
1.26 MILES S OF PA LINE, Carroll, MD
Over: BIG PIPE CREEK
0.37 MI SE OF MAYBERRY RD, Carroll, MD
Over: CATOCTIN CREEK
0.6 MILE SOUTH OF IS 70, Frederick, MD
Over: CYPRESS BRANCH
0.8 MI NW OF BIG STONE RD, Kent, MD
Over: TRED AVON RIVER
1 MI NE OF OXFORD, Talbot, MD
Over: STONEY CREEK
50M EAST OF E PALMER RD, Montgomery, MD
Over: NEFF RUN
0.14 MI S OF MD 36, Allegany, MD
Over: LITTLE GUNPOWDER FALLS
ON HARFORD CO LINE, Baltimore, MD
Over: TRIBUTARY TO BEAR CREEK
0.8 MI EAST OF MD 157, Baltimore, MD
Over: TRIBUTARY TO NORTH BRANC
1.3 MI E OF MD 140, Carroll, MD
Over: BEAVERDAM CREEK
0.1 MI W ADAMS WILLETT RD, Charles, MD
Over: DITCHLEY PRONG
0.1 MI E SHILOH CHURCH RD, Charles, MD
Over: POTOMAC RIVER, CSX, C&O
POINT OF ROCKS, Frederick, MD
Over: MIDDLE CREEK
1.13 MILES N OF MD 383, Frederick, MD
Over: CATOCTIN CREEK
0.05 M E OF MARKER ROAD, Frederick, MD
Over: CSX TRANSPORTATION
0.05 MILE WEST OF US 219, Garrett, MD
Over: SUSQUEHANNA RIVER-PA RR
HARFORD-CECIL CO LINE, Harford, MD
Over: LITTLE FALLS BRANCH
0.1 MI E OF WARWICK AVE, Montgomery, MD
Over: PAINT BRANCH
CAPITAL BELTWAY TO EXIT 2, Prince George's, MD
Over: HARPERS CREEK
0.7 MI N OF BRONSON RD, St. Mary's, MD
Over: GOOSE CREEK
0.9 MI NE OF MACAULAY AVE, St. Mary's, MD
Over: ASSAWOMAN BAY
1.17 MILES WEST OF MD 528, Worcester, MD
Over: FIFTEEN MILE CREEK
0.19 M E OF BR NO 0113300, Allegany, MD
Over: CHESAPEAKE BAY
6 MI E OF MD RTE 2, Anne Arundel, MD
Over: COOLSPRING BRANCH
0.3 M N OF GOODEN ROAD, Caroline, MD
Over: BR OF GUNPOWDER FALLS
0.24 MI S OF PA LINE, Carroll, MD
Over: LIBERTY RESERVOIR
2.53 MILE SOUTH OF MD 91, Carroll, MD
Over: TRIB TO INDIAN CREEK
0.26 MI W OF US 1, Prince George's, MD
Over: KINGS CREEK
0.18 MILE SOUTH OF MD 920, Somerset, MD
Over: GEORGES CREEK
0.02 MI E OF MD 36, Allegany, MD
Over: MARLEY CREEK
0.79 MILE WEST OF MD 2, Anne Arundel, MD
Over: DEEP RUN
0.05 MILE SOUTH OF MD 130, Baltimore, MD
Over: BASIN RUN
0.01 MI W OF HARMONY C DR, Cecil, MD
Over: CAMBRIDGE CREEK
0.04 MI E OF MARKET ST, Dorchester, MD
Over: PLEASANT BRANCH
1.71 MILES N OF MD 355, Frederick, MD
Over: TRIBUTARY OF JAMES RUN
0.3 MILE N OF CRESWELL RD, Harford, MD
Over: BROAD CREEK
0.4 MILES N OF MD 543, Harford, MD
Over: MILL CREEK
0.60 MILE NORTH OF MD 213, Kent, MD
Over: MD ROUTE 201
0.1 MILES NORTH OF U.S. R, Prince George's, MD
Over: BR OF WYE RIVER
0.47 MILE NORTH OF US 50, Queen Anne's, MD
Over: EVITTS CREEK
1.26 MI N OF ZEMBOWER RD, Allegany, MD
Over: CSX TRANSPORTATION
0.48 MILES EAST OF MD 30, Baltimore, MD
Over: MTA LIGHT RAIL
100 FEET W OF BELLONA AVE, Baltimore, MD
Over: DULANEY VALLEY BRANCH
0.17 MI N OF DUL VALL RD, Baltimore, MD
Over: COMPASS RUN
0.3 MI S. OF BCKLYSVIL RD, Baltimore, MD
Over: TRIBUTARY TO MINEBANK RU
0.4 MI. NW CROMWELL BR RD, Baltimore, MD
Over: HERRING RUN
0.25 MI NE OF MD 404, Caroline, MD
Showing 1,251-1,300 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 |