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: DEEP RUN
0.3 MI W OF MD RTE 295, Anne Arundel, MD
Over: LITTLE GUNPOWDER FALLS
0.29 MI SE OF JERICHO RD, Baltimore, MD
Over: GUNPOWDER FALLS
1 MI E OF YORK RD, Baltimore, MD
Over: TRIBUTARY TO DEAD RUN
0.18 MI N OF SECURITY BLV, Baltimore, MD
Over: MATTAWOMAN CREEK
0.03 MILE EAST OF MD 224, Charles, MD
Over: MONOCACY RIVER
2.29 MILES SOUTH OF MD 85, Frederick, MD
Over: CHERRY CREEK
0.74 MI W OF US RTE 219, Garrett, MD
Over: HERRING RUN
0.01 MILE S OF LAPIDUM RD, Harford, MD
Over: BROAD RUN
1 MI N OF WESTERLY ROAD, Montgomery, MD
Over: RACE TRACK RD
0.37 MILE SOUTH OF MD 717, Prince George's, MD
Over: SIDELING HILL CREEK
0.3 MI N OF IS 68, Washington, MD
Over: SEVERN RIVER
0.31 MI W OF MD 648A, Anne Arundel, MD
Over: DAILY PARKING GARAGE
BWI DAILY GARAGE, Anne Arundel, MD
Over: FIRST MINE BRANCH
0.3 MI S OF HUNTER MILL R, Baltimore, MD
Over: DULANEY VALLEY BRANCH
0.1 MI S OF DULANEY VALLE, Baltimore, MD
Over: PLUM POINT CREEK
0.16 MI E OF TOBACCO RD, Calvert, MD
Over: BIG SILVER RUN
0.75 MI E OF MD 97, Carroll, MD
Over: CSX TRANS., POTOMAC, MUN
ON VIRGINIA LINE, Frederick, MD
Over: FRIENDS CREEK
1.5 MI NE OF EYLER VALLEY, Frederick, MD
Over: OWENS CREEK
Take Hwy 77 3 miles west,, Frederick, MD
Over: AMTRAK
0.19 MILE EAST OF US 40, Harford, MD
Over: RADCLIFF CREEK
0.06 MILE EAST OF MD 514, Kent, MD
Over: RED LION BRANCH
0.21 MILE SOUTH OF US 301, Queen Anne's, MD
Over: BISHOPVILLE PRONG
0.05 MILE WEST OF MD 368, Worcester, MD
Over: SINEPUXENT BAY
0.17 M S OF SOUTH PT RD, Worcester, MD
Over: CHARLES RUN
0.1 MI S MONKTON RD, Baltimore, MD
Over: GUNPOWDER FALLS
1.3 MI E OF MONKTON RD, Baltimore, MD
Over: FIRST MINE BRANCH
0.4 MI NE OF BACON RD, Baltimore, MD
Over: PARKS RUN
0.17 MI W OF MD 45, Baltimore, MD
Over: LONG QUARTER BRANCH
100 FEET W OF MEADOWVALE, Baltimore, MD
Over: LONG QUARTER BRANCH
0.30 MI E OF MD 45, Baltimore, MD
Over: NORTH BRANCH JONES FALLS
0.12 MI SW OF MD 129, Baltimore, MD
Over: HOG CREEK
2.06 MILE EAST OF MD 331, Caroline, MD
Over: BR OF BIG ELK CREEK
0.24 MILE NORTH OF MD 279, Cecil, MD
Over: C&D CANAL
14 MI WEST OF REEDY PT., Cecil, MD
Over: CHICAMACOMICO RIVER
0.22 MI. N. OF GRIF NCK R, Dorchester, MD
Over: DORCUS BRANCH
0.74 MILE SOUTH OF MD 194, Frederick, MD
Over: CATOCTIN CREEK
0.63 MILE EAST OF MD 180, Frederick, MD
Over: MILL BROOK
0.4 MIL E OF GLENVILLE RD, Harford, MD
Over: LITTLE PATUXENT RIVER
0.2 MI W OF GUILFORD RD, Howard, MD
Over: CSXT RAILROAD
0.6 MILES EAST OF MD 355, Montgomery, MD
Over: KENT ISLAND NARROWS
0.59 MILE WEST OF MD 835, Queen Anne's, MD
Over: CAMPBELL DITCH
0.75 MI E SIXTY FOOT RD, Wicomico, MD
Over: WARRIOR RUN
0.27 MI E OF MD 53, Allegany, MD
Over: BRADDOCK RUN
0.11 MI N OF US 48, Allegany, MD
Over: BEAR CREEK
0.9 MI W OF NORTH PT RD, Baltimore, MD
Over: TRIBUTARY TO PATAPSCO RI
200' S. OF EDMONDSON AVE., Baltimore, MD
Over: GAY STREET
0.2 MI S OF ORLEANS ST, Baltimore city, MD
Over: MARSHYHOPE CREEK
1.11 MILE EAST OF MD 313, Caroline, MD
Over: BR OF GUNPOWDER FALLS
1.74 MI S OF PA LINE, Carroll, MD
Showing 1,351-1,400 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 |