Total Bridges
5,527
Public highway bridges in Maryland
State profile · Below median Poor share
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Maryland, based on the FHWA National Bridge Inventory.
Data updated May 2026
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 whose lowest applicable component is rated 0-4
-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 by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Maryland on the same metric.
CT
TN
MD
CO
OR
Six lowest-condition bridges in Maryland, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
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: THOMAS RUN
0.2 MILE E OF THOMAS R RD, Harford, MD
Over: BYNUM RUN
0.6 MILES S OF MD 543, Harford, MD
Over: OLD MONT. RD & DEEP RUN
0.62 MILE WEST OF MD 103, Howard, MD
Over: DORSEY STATION ACCESS RD
0.39 M W OF AA CO LINE, Howard, MD
Over: DORSEY STATION ACCESS RD
0.39 M W OF AA CO LINE, Howard, MD
Over: BOOZE CREEK
0.5 MILES SOUTH OF MD 191, Montgomery, MD
Over: Ramp NW
0.5 mi S Briggs Chaney Rd, Montgomery, MD
Over: BRANCH OF OCTORARO CREEK
0.89 MI E OF US RTE 222, Cecil, MD
Over: RAMP X
BWI AIRPORT, Anne Arundel, MD
Over: TRIBUTARY TO WHITE MARSH
1.0 MI E OF MD RT 1, Baltimore, MD
Over: STEMMERS RUN
I95/I695 INTERCHANGE, Baltimore, MD
Over: LITTLE NORTHEAST CREEK
0.02 MI E OF STEVENSON RD, Cecil, MD
Over: GALESTOWN MILLPOND
1.5 Mi. NE of JNC Rt 313, Dorchester, MD
Over: TRIB. OF BROAD RUN
0.4 MI W OF PICNIC WOODS, Frederick, MD
Over: OVERSHOT BRANCH
0.03 MILES N OF GUYTON RD, Harford, MD
Over: LITTLE BENNETT CREEK TRI
2.8 MILES NORTH OF MD 355, Montgomery, MD
Over: BRADDOCK RUN
0.27 MI W OF IS 68, Allegany, MD
Over: EVITTS CREEK
0.71 MILE NORTH OF I-68, Allegany, MD
Over: MATTAWOMAN CREEK
ON CHARLES COUNTY LINE, Charles, MD
Over: TRIB OF PETER PAN RUN
EAST OF ADDISON WOODS RD, Frederick, MD
Over: TALBOT BRANCH
0.25 MI E OF WOODVILLE RD, Frederick, MD
Over: MOUNTAIN BRANCH
1.7 MILES E OF MD 152, Harford, MD
Over: TRIB / DEER CREEK
0.4 MILES W OF MD 23, Harford, MD
Over: Good Hope Tributary
0.48 Mi East of MD650, Montgomery, MD
Over: Ramp SE
0.12 mi W of 29/200 I/C, Montgomery, MD
Over: DEEP RUN
0.38 MI E OF WESLEY ROAD, Carroll, MD
Over: AMTRAK
2.34 MILE NORTH OF MD 272, Cecil, MD
Over: US 15
0.49 MILE EAST OF IS 70, Frederick, MD
Over: MD 200 (ICC)
2.33 MI W OF MD 97, Montgomery, MD
Over: BEAVER DAM CREEK
0.15 MI W OF MD 295, Prince George's, MD
Over: TRIBUTARY OF WOLF DEN BR
1 MI S OF CEDARVILLE RD, Prince George's, MD
Over: LITTLE ANTIETAM CREEK
1.02 MI SE OF MD RTE 60, Washington, MD
Over: MARSH RUN
0.76 MI E OF MD RTE 60, Washington, MD
Over: C&O CANAL
0.2 miles from Little Ton, Washington, MD
Over: PAW PAW CREEK
0.19 MI SW OF MD 365, Worcester, MD
Over: WEST BRANCH OF CHRISTIAN
0.32 MI E OF APPLETON RD, Cecil, MD
Over: TOMS RUN
1.9 MILES WEST OF MD 68, Washington, MD
Over: GRAVE RUN
0.56 MI N OF FALLS RD, Baltimore, MD
Over: GEORGETOWN BRANCH TRAIL
0.52 MILE EAST OF MD 355, Montgomery, MD
Over: GEORGES CREEK
1.03 M S OF BR NO 0112700, Allegany, MD
Over: N BRANCH POTOMAC RIVER
ON WEST VIRGINIA LINE, Allegany, MD
Over: DOGWOOD RUN
2.74 MI. W. OF IS 695, Baltimore, MD
Over: MILL POND STREAM
1.02 MILES N OF MD 282, Cecil, MD
Over: TRIBUTARY TO BYNUM RUN
1.0 MILES E OF CEDAR LANE, Harford, MD
Over: TRIB / PLUMTREE RUN
0.3 MILES S OF W RIDING D, Harford, MD
Over: CSXT RAILROAD
0.5 MI W OF SEMINARY ROAD, Montgomery, MD
Over: UNNAMED TRIBUTARY
0.8 MI S OF RIVER ROAD, Montgomery, MD
Over: LITTLE SENECA CREEK
0.1 MI. E. OF MD 355, Montgomery, MD
Over: MD 200 (ICC) Ramp SB
0.10 Mi. West of US 29, Montgomery, MD
Over: COBB ROAD
IS 595,IS 95-495 INT, Prince George's, MD
Showing 4,751-4,800 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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.