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: LANES RUN
0.9 MI N OF US RTE 40, Washington, MD
Over: BIG HUNTING CREEK
WEST OF LAYMAN RD INT, Frederick, MD
Over: DEER CREEK
0.02 MILES NE OF MD 24, Harford, MD
Over: BEAVER CREEK
0.36 MI N OF MD RTE 64, Washington, MD
Over: LITTLE ANTIETAM CREEK
0.5 MI W OF MD RTE 67, Washington, MD
Over: CABIN JOHN CREEK
1.5 MI. E. OF I-495, Montgomery, MD
Over: OCTORARO CREEK
0.02 MI W OF HORSESHOE RD, Cecil, MD
Over: NYDEGGER RUN
0.32 MI NORTH OF MD 560, Garrett, MD
Over: LITTLE TONOLOWAY CREEK
0.16 MI N MD RT 144, Washington, MD
Over: ROCK BRANCH
0.7 MI N OF MD RTE 422, Anne Arundel, MD
Over: CATOCTIN CREEK
0.65 MI EAST OF MD 17, Frederick, MD
Over: TRIBUTARY OF OREGON BRAN
0.7 MI E OF FALLS RD, Baltimore, MD
Over: TRIBUTARY TO PATAPSCO RI
0.57 MI S OF MD 144, Baltimore, MD
Over: MINEBANK RUN
0.09 MI W CROMWELL BRDG R, Baltimore city, MD
Over: TOMS CREEK
2.0 MI NORTHEAST OF MD 76, Frederick, MD
Over: WEST BRANCH/WINTERS RUN
1.5 MILES E OF MD 165, Harford, MD
Over: KILGOUR BRANCH
1.5 MI WEST OF MD 189, Montgomery, MD
Over: ANTIETAM CREEK
0.8 MI NW OF MD RTE 34, Washington, MD
Over: LITTLE ANTIETAM CREEK
1.89 MI W OF MD RTE 67, Washington, MD
Over: DEER CREEK
1.6 MILES S OF US 1, Harford, MD
Over: SEVERN RUN
0.64 MI E OF MD 174, Anne Arundel, MD
Over: BASIN RUN
0.01 MI NE OF DR JACK RD, Cecil, MD
Over: CABBAGE RUN
1.39 MILES NORTH OF MD 26, Frederick, MD
Over: HUNTING CREEK
WEST OF OLD FREDERICK RD, Frederick, MD
Over: CATTAIL BRANCH
0.04 MI S GREEN LEAF RD, Prince George's, MD
Over: POTOMAC RIVER, CSX TRANS
ON VIRGINIA STATE LINE, Washington, MD
Over: WESTERN RUN
0.3 MI S WESTERN RUN RD, Baltimore, MD
Over: TRIBUTARY TO PATAPSCO RI
0.08 MI W OF HMDS FERY RD, Baltimore, MD
Over: TRIBUTARY TO PATUXENT RI
0.17 MILES EAST OF US 1, Prince George's, MD
Over: ANTIETAM STREET
1000 FT W OF US RTE 40 E, Washington, MD
Over: C&O CANAL
0.1 miles from Spring Gap, Allegany, MD
Over: GRANITE BRANCH
0.46 MI N OF DAVIS AVE, Baltimore, MD
Over: BASIN RUN
0.03 MI N OF BASIN RUN RD, Cecil, MD
Over: HOLLOW CREEK
1 MILE SOUTHEAST OF MD 17, Frederick, MD
Over: BLUE BLAZES CREEK
US-15N, WEST ON MC-77 TO, Frederick, MD
Over: UNNAMED STREAM
0.40 MI NE OF MD 36, Allegany, MD
Over: SAW MILL BRANCH
0.04 MILES N OF GREENE RD, Harford, MD
Over: WESTERN BRANCH
0.13 MILE NORTH OF MD 4, Prince George's, MD
Over: PATUXENT RIVER
TRACT #9 / CENTRAL TRACT, Anne Arundel, MD
Over: CABIN BRANCH
0.29 MI W OF MD 10, Anne Arundel, MD
Over: LITTLE PATUXENT RIVER
0.8 MILES SOUTH OF MD ROU, Anne Arundel, MD
Over: LITTLE PATUXENT RIVER
0.8 MILES SOUTH OF MD ROU, Anne Arundel, MD
Over: TRIBUTARY TO NORTH BRANC
1.28 MILES NW OF MD 30, Baltimore, MD
Over: MIDDLE CREEK
AT MD 17 INTERSECTION, Frederick, MD
Over: CATOCTIN CREEK
1.5 MI W OLD MIDDLETOWN R, Frederick, MD
Over: LITTLE YOUGHIOGHENY RIVE
0.6 M N INT GARRETT RD, Garrett, MD
Over: WINTERS RUN
1.8 MILES W OF US 1, Harford, MD
Over: DEER CREEK
0.02 MI S OF TELEGRAPH RD, Harford, MD
Over: TRIB TO SOUTHWEST BRANCH
.1 MI N OF WHITE HOUSE RD, Prince George's, MD
Over: TRIB. TO SOUTHWEST BR.
0.8 MI SOUTH OF MD 214, Prince George's, MD
Showing 1,151-1,200 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.