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: BRANCH OF CHESAPEAKE BAY
0.28 MI. N OF 7TH ST., Calvert, MD
Over: TRIBUTARY OF BYNUM RUN
0.1 MI. E. of Tyrell Ct, Harford, MD
Over: ROCKBURN BRANCH
AT ROCKBURN RD, Howard, MD
Over: BRADDOCK RUN
N OF MD 53, Allegany, MD
Over: CLEMSON BRANCH
0.5 MI E OF CLEMSONVILLE, Frederick, MD
Over: TUSCARORA CREEK
0.1 MI N OF OPOSSUMTWN PK, Frederick, MD
Over: FERRY BRANCH
0.2 MI S OF MD 422, Anne Arundel, MD
Over: HOLLOW CREEK
0.34 MI SOUTH OF MD 17, Frederick, MD
Over: MD200 (ICC)
0.7 mi E OF REDLAND RD, Montgomery, MD
Over: AMTRAK
0.03 MILE S OF MD 564C, Prince George's, MD
Over: MOUNT NEBO BRANCH
0.21 MI N OF MD RTE 214, Prince George's, MD
Over: SOUTH BRANCH GUNPOWDER F
150 FT N OF TRACEYS MILL, Carroll, MD
Over: DORSEY BRANCH
0.5 MI N OF SHARP RD, Howard, MD
Over: LITTLE CATOCTIN CREEK
0.2 MI N OF WOODLAND WAY, Frederick, MD
Over: MIDDLE PATUXENT RIVER
0.89 MILE NORTH OF US 29, Howard, MD
Over: MUDDY BRANCH
AT QUERY MILL ROAD, Montgomery, MD
Over: DORSEY CREEK
0.3 KM E OF DECATUR AVE, Anne Arundel, MD
Over: SILVER CREEK
0.4 MILES EAST OF MD 185, Montgomery, MD
Over: AIRPORT RETURN RAMP
BWI AIRPORT, Anne Arundel, MD
Over: BIG ELK CREEK
0.1 MILE SOUTH OF MD 7D, Cecil, MD
Over: PATUXENT RIVER
ON MONTGOMERY CO LINE, Howard, MD
Over: KING BRANCH
.1 MI S. OF CORPORATE DR, Frederick, MD
Over: WELDON CREEK
0.9 MI S OF OAK ORCHRD RD, Frederick, MD
Over: JAMES RUN
0.28 MILE NORTH OF MD 136, Harford, MD
Over: DEEP RUN
0.4 MI N MD 176 HO/AA CO., Howard, MD
Over: LITTLE GUNPOWDER FALLS
ON HARFORD CO LINE, Baltimore, MD
Over: LITTLE GUNPOWDER FALLS
ON HARFORD CO LINE, Baltimore, MD
Over: GOODWIN RUN
0.28 MILE EAST OF IS 83, Baltimore, MD
Over: GOODWIN RUN
0.28 MILE EAST OF IS 83, Baltimore, MD
Over: TRIBUTARY TO REDHOUSE CR
0.2 MI NW OF MD 7, Baltimore, MD
Over: LITTLE PIPE CREEK
0.01 MI N OF ROOPS MIL RD, Carroll, MD
Over: NORTH BRANCH PATAPSCO RI
0.5 MI. W. EMORY ROAD, Carroll, MD
Over: TRIBUTARY TO PISCATAWAY
0.2 MI E OF SUMMIT CK DR, Prince George's, MD
Over: PERSIMMON CREEK
0.4 M NE OF MD 235, St. Mary's, MD
Over: LANES RUN
1.3 MI N OF US RTE 40, Washington, MD
Over: RELOCATED RANDOLPH ROAD
2.5 MI N. OF I-495, Montgomery, MD
Over: SEVEN SPRINGS RUN
1.15 MILES E OF MD 51, Allegany, MD
Over: TRIB. TO PATUXENT RIVER
0.25 MI. SOUTH OF MD32, Anne Arundel, MD
Over: TRIBUTARY TO GUNPOWDER F
1.28 MI E OF US RTE 1, Baltimore, MD
Over: NORTHEAST CREEK
0.71 MI N OF MD 274, Cecil, MD
Over: CSX TRANSPORTATION
0.98 MILE N OF MD 117, Montgomery, MD
Over: ROCK CREEK
0.75 MI N OF JCT SR 28, Montgomery, MD
Over: ISRAEL CREEK
0.6 MI S OF DAYSVILLE RD, Frederick, MD
Over: DEEP CREEK LAKE
3.88 MILE SOUTH OF MD 42, Garrett, MD
Over: BYNUM RUN
0.4 MILES S OF MD 22, Harford, MD
Over: AMTRAK,SER RD,BEAVERDAM
0.16 MILE SOUTH OF US 50, Prince George's, MD
Over: NORTHWEST BRANCH
0.7 MILES EAST OF MD 182, Montgomery, MD
Over: COLLINGTON BRANCH
0.03 MILE NORTH OF MD 725, Prince George's, MD
Over: CABIN BRANCH
2.91 MILES S OF IS 495, Prince George's, MD
Over: MASON ROAD
0.82 MILE NORTH OF I-68, Allegany, MD
Showing 4,951-5,000 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.