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 SOUTHWEST BRANCH
0.07 MILE SOUTH OF IS 95, Prince George's, MD
Over: PISCATAWAY CREEK
.74 MI E FRANK TIPPETT RD, Prince George's, MD
Over: TRIBUTARY TO NORTHWEST B
0.35 MI S OF MD 500, Prince George's, MD
Over: ANTIETAM CREEK
0.64 M SW OF ALT US RT 40, Washington, MD
Over: WINTERS RUN
0.33 M S OF EDGEWOOD ROAD, Harford, MD
Over: ROCKY GAP RUN
0.23 MI S OF ROCKY GAP RD, Allegany, MD
Over: ANTIETAM CREEK
0.09 MI W OF ALT US RT 40, Washington, MD
Over: BEAVER DAM CREEK
AT DOTTERER RD INTERSECTN, Frederick, MD
Over: TRIB TO PISCATAWAY CREEK
0.2 MI N OF SURRATTS ROAD, Prince George's, MD
Over: PINEY BRANCH
2.5 MI E OF ST CHAR. PKWY, Charles, MD
Over: LITTLE DEER CREEK
1.2 MILES NW OF MD 165, Harford, MD
Over: OLD FARM CREEK
0.5 MI. W. OF JEFFERSON, Montgomery, MD
Over: TOWSERS BRANCH
0.25 MI W OF MD 3, Anne Arundel, MD
Over: PRATT HOLLOW
RP FR I 68 EB TO US 40SC, Allegany, MD
Over: HOURLY PARKING GARAGE
BWI HOURLY PARK GARAGE, Anne Arundel, MD
Over: ROCK RUN
0.84 MILE NORTH OF MD 276, Cecil, MD
Over: LITTLE CATOCTIN CREEK
0.25 MI SOUTH OF US 40, Frederick, MD
Over: RENN BRANCH
0.7 MI SE OF US RTE 340, Frederick, MD
Over: ANTIETAM CREEK
0.95 MI S OF MD RTE 60, Washington, MD
Over: MARLEY CREEK
0.45 MI S OF MD 648E, Anne Arundel, MD
Over: LITTLE PIPE CREEK
0.02 MI W OF UNION BRIDGE, Carroll, MD
Over: PRINCIPIO CREEK
0.65 MI E OF BELVIDERE RD, Cecil, MD
Over: CABBAGE RUN
100' N OF BENNIE DUNCAN R, Frederick, MD
Over: MD 924
0.53 MI NORTH OF I-95, Harford, MD
Over: MIDDLE PATUXENT RIVER
0.6 MI N OF MD RTE 108, Howard, MD
Over: STOCKETTS RUN
2.0 MI WEST OF MD ROUTE 2, Anne Arundel, MD
Over: PRATT HOLLOW
RP FR US 40SC TO I 68 EB, Allegany, MD
Over: TRIB. OF BROAD RUN
1.0 MI S OF MD RTE 383, Frederick, MD
Over: PERSIMMON CREEK
2.44 MILES W OF MD 235, St. Mary's, MD
Over: BLACK ROCK RD
0.78 MILE EAST OF MD 66, Washington, MD
Over: BLACK ROCK RD
0.78 MILE EAST OF MD 66, Washington, MD
Over: STADIUM LOT
Milepost M3.4, Baltimore city, MD
Over: PLUM POINT CREEK
1.3 MI SOUTH OF MD 263, Calvert, MD
Over: WICOMICO RIVER
0.591 M E OF JERSEY ROAD, Wicomico, MD
Over: DOUBS BRANCH
0.1 MI SW OF DOUBS ROAD, Frederick, MD
Over: CSXT RAILROAD
0.1 MILE WEST OF MD 192, Montgomery, MD
Over: Edmonston Creek
MD 200 0.7 mi E of I-95, Prince George's, MD
Over: BEAR CABIN BRANCH
0.2 MI N OF BERNADETTE DR, Harford, MD
Over: CHARLES BRANCH
1.26 MILES S OF US 301, Prince George's, MD
Over: TRIB TO JENNINGS RUN
1.87 MI N OF MD 638, Allegany, MD
Over: DIVIDING CREEK
ON WORCESTER CO LINE, Somerset, MD
Over: Terrapin Branch
0.82 MI. SOUTH OF MD 144, Howard, MD
Over: Terrapin Branch
0.82 MI. SOUTH OF MD 144, Howard, MD
Over: Middle Patuxent River
1.18 MILE SOUTH OF MD 144, Howard, MD
Over: Middle Patuxent River
1.18 MILE SOUTH OF MD144A, Howard, MD
Over: CAREYTOWN BRANCH
0.15 MI S OF SWAMP ROAD, Worcester, MD
Over: CHERRY CREEK
2.7 MILES S OF MD 826D, Garrett, MD
Over: WINEBRENNER RUN
0.14 MI S OF SHAFT-MIS RD, Allegany, MD
Over: WINTERS RUN
1.7 MILES N OF MD 152, Harford, MD
Over: BEL PRE CREEK
1.7 MILE EAST OF MD 97, Montgomery, MD
Showing 5,051-5,100 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 |