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: LINGANORE CREEK
1.0 MI W OF CNTRL CHURCH, Frederick, MD
Over: IS 270 (Wash. Nat'l Pike
0.75 MI. N of MD 124, Montgomery, MD
Over: Reddy Branch
2 MI. NORTH OF OLNEY, Montgomery, MD
Over: WATTS BRANCH
0.8 MILES NORTH OF MD 190, Montgomery, MD
Over: C & O CANAL
0.13 MILE N OF W VA LINE, Allegany, MD
Over: NORTH END OF CONSOLIDATE
CRCF - BWI AIRPORT, Anne Arundel, MD
Over: BEAVERDAM RUN
0.11 M N OF RAILROAD AVE, Baltimore, MD
Over: NORTHEAST CREEK
@ MD 695 & MD 702, Baltimore, MD
Over: RED RUN
1 MI SOUTH OF IS 795, Baltimore, MD
Over: LIBERTY RESERVOIR
0.4 MI W IVY MILL RD, Baltimore, MD
Over: GOVERNOR RUN
0.79 MI E OF MD 765, Calvert, MD
Over: LINGANORE CREEK
0.9 MI W OF MD 75, Frederick, MD
Over: TRIB OF MIDDLE PATUXENT
0.3 MI S PINDELL SCHOOL, Howard, MD
Over: CRABBS BRANCH WAY
0.56 MI E OF MD 355, Montgomery, MD
Over: TRIBUTARY OF NBRC
1.34 MI W OF MD 97, Montgomery, MD
Over: MD 200 (ICC)
0.93 MI W OF MD 97, Montgomery, MD
Over: MD200 & I-95
MD200 EB RAMP I-A TO I-95, Prince George's, MD
Over: MONIE CREEK
3.31 MILES WEST OF US 13, Somerset, MD
Over: NORWICH CREEK
0.25 MI E OF MD 404, Talbot, MD
Over: ANTIETAM CREEK
0.2 MI N OF MD RTE 60, Washington, MD
Over: CHURCH BRANCH
0.312 MILE N OF MD 589, Worcester, MD
Over: LINGANORE CREEK
1.0 MI W OF CNTRL CHURCH, Frederick, MD
Over: FISHING CREEK
0.3 MI E OF HESSONG BRDG, Frederick, MD
Over: LITTLE FALLS
1.4 MI NE MIDDLETOWN RD, Baltimore, MD
Over: Herring Run Trail
0.4 MI S ARGONNE DRIVE, Baltimore city, MD
Over: LITTLE CATOCTIN CREEK
2.16 MILES EAST OF MD 17, Frederick, MD
Over: TRIBUTARY 89
0.2 MI E OF WATER MARTZ R, Frederick, MD
Over: ROCK CREEK TRIBUTARY
0.3 MI N OF CEDAR LANE, Montgomery, MD
Over: MD 5
9 MI S OF I95/495, Prince George's, MD
Over: TIMOTHY BRANCH
325' North of Kathleen La, Prince George's, MD
Over: TOWN CREEK
0.24 M E OF BR NO 0114000, Allegany, MD
Over: TOWN CREEK
0.24 M E OF BR NO 0114000, Allegany, MD
Over: LITTLE FALLS
125 FT NE OF BERNOUDY, Baltimore, MD
Over: ROACHES RUN
0.38 MI E OF MD 140, Baltimore, MD
Over: AMTRAK RAILROAD
0.1 MI E OF MONROE ST, Baltimore city, MD
Over: HERRING RUN
MILEPOST M13.7, Baltimore city, MD
Over: UNNAMED STREAM
0.68 MI S OF MD 267, Cecil, MD
Over: LITTLE SENECA CREEK TRIB
0.5 MI. E. OF MD 355, Montgomery, MD
Over: US29, Ramp NB&SE, MD200
0.4 Mi S of Briggs Chaney, Montgomery, MD
Over: WESTERN BRANCH
0.41 MILE EAST OF MD 717, Prince George's, MD
Over: CONOCOCHEAGUE CREEK
0.4 MI NORTH OF US 40, Washington, MD
Over: BASIN RUN
0.26 MI S OF COLORA RD, Cecil, MD
Over: STONY RUN
0.47 MI W OF US 40, Cecil, MD
Over: DEER CREEK
0.03 MI N OF CRAIGS CR RD, Harford, MD
Over: ISLAND BRANCH
0.78 MI. NE OF ROUTE 23, Harford, MD
Over: CABIN BRANCH
1.3 MI N OF MD124, Montgomery, MD
Over: NSA PERIMETER ROAD
2.0 MILES FROM MD ROUTE 1, Anne Arundel, MD
Over: SCOTTS LEVEL BRANCH
300 FEET W OF WINANDS RD, Baltimore, MD
Over: BR OF POTOMAC RIVER
1.78 MI S. EAST OF MD 180, Frederick, MD
Over: MIDDLE CREEK
0.1 MI N OF MD RTE 17, Frederick, MD
Showing 4,301-4,350 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 |