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: 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: MURPHY RUN
0.05 MI E OF GROSS MIL RD, Carroll, MD
Over: ZEKIAH SWAMP RUN
2.5 MI E OF MD 5, Charles, MD
Over: CATOCTIN CREEK
1.1 MILES EAST OF MD 383, Frederick, MD
Over: CSXT RAILROAD
.08 MI W OF CUMBERLAND ST, Allegany, MD
Over: TRIBUTARY OF LOST LAND R
POTOMAC GARRETT ST FOREST, Garrett, MD
Over: TIBER RIVER
0.01 MI S MAIN STREET, Howard, MD
Over: NORTH BRANCH OF POTOMAC
0.3 MI S OF MD RTE 51, Allegany, MD
Over: SULLIVAN BRANCH
2.3 MI NE OF FEDERALSBURG, Caroline, MD
Over: DEER CREEK
0.8 MI E MAIN ST, Harford, MD
Over: LITTLE CATTAIL CREEK
0.3 MI N JENNINGS CHAPEL, Howard, MD
Over: TRIBUTARY OF DOG CREEK
0.05 MI E OF MD RTE 67, Washington, MD
Over: BASIN RUN
0.24 MI W OF COLORA RD, Cecil, MD
Over: DOGWOOD RUN
200' SW OF HOLLIFIELD RD, Baltimore, MD
Over: ROCK CREEK
100 FT W OF BEACH DRIVE, Montgomery, MD
Over: ISRAEL CREEK
0.3 MI W OF MD RTE 67, Washington, MD
Over: CSX RAILROAD
0.1 MI SE OF OLD HANOVER, Baltimore, MD
Over: BUFFALO RUN
0.2 MI NE OF MD RTE 42, Garrett, MD
Over: BEAVERDAM CREEK
0.14 MI N OF MD 202, Prince George's, MD
Over: MAPLE RUN
5.61 MI. S. OF I-68, Allegany, MD
Over: BYNUM RUN
0.8 MILES W OF MD 136, Harford, MD
Over: SHANKS CREEK
SMITH ISLAND, Somerset, MD
Over: POINT LOOKOUT CREEK
1 Mile South of SR 5, St. Mary's, MD
Over: TRIBUTARY TO HERRING RUN
0.12 MI E OF OAKLEIGH AVE, Baltimore, MD
Over: MARUMSCO CREEK
1.5 MI WEST OF MARUMSCO, Somerset, MD
Over: CARROLL CREEK
0.2 MI SOUTH OF US 15, Frederick, MD
Over: CSX RAILROAD
0.1 MILES N OF US 40, Harford, MD
Over: GUNPOWDER FALLS
2.3 MI E YORK RD, Baltimore city, MD
Over: DIVIDING CREEK
WOR-SOMER CO LINE, Worcester, MD
Over: DEADMAN RUN
0.7 MI N OF TUFTON AVE, Baltimore, MD
Over: SAMS CREEK
ON FREDERICK CO LINE, Carroll, MD
Over: TRANSQUAKING RIVER
0.1 MI W OF GRIF NECK RD, Dorchester, MD
Over: GAREY MILL POND BRANCH
2.5 MILES NORTH OF MD 317, Caroline, MD
Over: MILL RUN
0.02 MI S MILL RUN ROAD, Garrett, MD
Over: BEAVER RUN
AT HUGHES ROAD, Carroll, MD
Over: LITTLE MONOCACY RIVER
0.5 MI E OF MT EPHRAM RD, Montgomery, MD
Over: JOSEPH'S BRANCH
0.5 MI. EAST OF ROUTE 185, Montgomery, MD
Over: CAREY BRANCH
0.13 MI N OF HAMMOND ROAD, Worcester, MD
Over: C&O CANAL
Little Orleans Campground, Allegany, MD
Over: MARSHYHOPE CREEK
1.19 MILES SW OF DELAWARE, Caroline, MD
Over: BUFFALO RUN
0.37 MI NE OF MD RTE 42, Garrett, MD
Over: C&O CANAL
Harpers Ferry Road to Bac, Washington, MD
Over: MARYLAND MIDLAND RAILROA
1000 FEET SOUTH OF MD 77, Frederick, MD
Over: CLARA BARTON PARKWAY
1.3 MILES SOUTH OF I-495., Montgomery, MD
Over: LEEDS CREEK
6 MI NW OF EASTON, Talbot, MD
Over: SULLIVAN BRANCH
1.3 MI SE OF AGNER, Caroline, MD
Showing 5,301-5,350 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.