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: MILLS BRANCH
0.19 MILE WEST OF US 301, Kent, MD
Over: NORTHWEST BRANCH
0.6 MILES EAST OF MD 182, Montgomery, MD
Over: CHAPTICO CREEK
0.22 MILE WEST OF MD 238, St. Mary's, MD
Over: NORTH BRANCH SKIPTON CRE
0.86 MILE EAST OF MD 662B, Talbot, MD
Over: SAWPIT RUN
0.48 M E OF PACK HORSE RD, Allegany, MD
Over: FORCE MAIN
0.19 MI E OF MD 695, Baltimore, MD
Over: PATAPSCO RIVER
1.58 MI S OF MD RTE 144, Baltimore, MD
Over: CARROLL BRANCH
0.29 MI E OF CARROLL ROAD, Baltimore, MD
Over: GWYNNS FALLS
1 MI N OF MD 140, Baltimore, MD
Over: MIDDLE BRANCH
0.6 MI. E. OF RUSSELL ST., Baltimore city, MD
Over: I-895 SB ON RAMP
MILEPOST M13.13, Baltimore city, MD
Over: BIG PIPE CREEK
0.41 MI N OF MD 77, Carroll, MD
Over: SOUTH BRANCH MIDDLE RUN
0.59 MI N OF MD 32, Carroll, MD
Over: SWANSON CREEK
1 MI E WILKERSON ROAD, Charles, MD
Over: LITTLE HUNTING CREEK
0.84 MILE NORTH OF US 15, Frederick, MD
Over: MONOCACY RIVER
0.08 MILE EAST OF MD 880, Frederick, MD
Over: FLAT RUN
0.2 MILE SOUTH OF MD 140, Frederick, MD
Over: CSX TRANSPORTATION
0.75 M N OF GUILFORD ROAD, Howard, MD
Over: CSX TRANSPORTATION
0.75 M N OF GUILFORD ROAD, Howard, MD
Over: TIBER HUDSON BRANCH
0.01 MI E OF MAIN STREET, Howard, MD
Over: RED HILL BRANCH
0.4 MI N OF MD RTE 108, Howard, MD
Over: SENECA CREEK TRIB
1 MI N OF JCT SR 112, Montgomery, MD
Over: LITTLE FALLS BRANCH
0.1 MI SOUTH OF MD 190, Montgomery, MD
Over: TRIBUTARY TO NORTH BRANC
.5 MI NORTH OF MD-200, Montgomery, MD
Over: ROCK CREEK
1.3 MI SOUTH OF MD 547, Montgomery, MD
Over: SLIGO CREEK
0.23 MILE WEST OF MD 212, Prince George's, MD
Over: NORTHWEST BRANCH
0.73 MI N OF MD 500, Prince George's, MD
Over: TINKERS CREEK
0.59 MILES NORTH OF MD 22, Prince George's, MD
Over: WMATA RAILROAD
0.2 MI S OF I-95, Prince George's, MD
Over: CREEK RD
1.0 MILE WEST OF IS 70, Washington, MD
Over: GR TONOLOWAY CK, CO RDS
0.67 MILE W OF MD 144WB, Washington, MD
Over: MOORES RUN
0.28 MI N OF MD 36, Allegany, MD
Over: WARRIOR RUN
0.11 MILE SOUTH OF MD 636, Allegany, MD
Over: KELLY BLVD, CSX TRANS.
0.29 MI W OF KELLY RD, Allegany, MD
Over: WEEMS CREEK
0.67 MI W OF MD 70, Anne Arundel, MD
Over: AMTRAK
1.12 MILE NORTH OF MD 702, Baltimore, MD
Over: WESTERN RUN
0.1 MI S GREEN RD, Baltimore, MD
Over: REDHOUSE RUN
0.6 MI S OF MD 588, Baltimore, MD
Over: CSX
0.1 MI E OF LIBERTY MED C, Baltimore city, MD
Over: MDTA YARD, WETLANDS
RMP KEITH AVE TO I95S, Baltimore city, MD
Over: FAULKNER BRANCH
0.3 MILES NW OF MD 313, Caroline, MD
Over: BIG PIPE CREEK
1 MI E CROUSE MILL RD, Carroll, MD
Over: CONOWINGO CREEK
0.61 MI E OF OAKWOOD RD, Cecil, MD
Over: LITTLE OWENS CREEK
1.74 MILE NORTH OF MD 550, Frederick, MD
Over: BROAD CREEK
0.5 MILES NE OF MD 543, Harford, MD
Over: LITTLE PATUXENT RIVER
0.27 MILE NORTH OF US 29, Howard, MD
Over: CLARKS CREEK
0.3 MI N MD RTE 108, Howard, MD
Over: GR SENECA CR & GAME PRE
1.17 MILES N OF MD 124, Montgomery, MD
Over: SENECA CREEK
0.5 MI W OF SENECA ROAD, Montgomery, MD
Over: PISCATAWAY CREEK
2.13 MILES N OF MD 373, Prince George's, MD
Showing 2,351-2,400 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 |