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: BALLENGER CREEK
1.95 MILES SOUTH OF IS 70, Frederick, MD
Over: BENS BRANCH
0.19 MI S OF MD 874C, Frederick, MD
Over: LINGANORE CREEK
0.22 M W OF BR NO 1016800, Frederick, MD
Over: BRANCH OF LINGANORE CREE
0.58 M W ALBAUGH ROAD, Frederick, MD
Over: FRIENDS CREEK
0.15 M S OF BENTZEL ROAD, Frederick, MD
Over: MONOCACY RIVER
3 MI N OF WOODSBORO, Frederick, MD
Over: BENNETT CREEK
2.75 MI SOUTH OF MD 80, Frederick, MD
Over: ROCK CREEK
500' W OF WILLOWDALE DR., Frederick, MD
Over: CARROLL CREEK FLOODPLAIN
0.2 MI NORTH OF MD 144, Frederick, MD
Over: ROCK CREEK
0.2 MI. NORTH OF US 40, Frederick, MD
Over: EDISON BRANCH
2.7 MI. WEST OF US 15, Frederick, MD
Over: OPOSSUM BRANCH
0.7 MILES WEST OF US 15, Frederick, MD
Over: EDISON BRANCH
1.3 MI WEST OF US 15, Frederick, MD
Over: DUBLIN BRANCH
1.5 MI E OF US RTE 15, Frederick, MD
Over: CRABTREE CREEK
0.03 MI E SPRING LICK RD, Garrett, MD
Over: MIDDLE FORK
0.7 MI N OF SPRING LICK R, Garrett, MD
Over: BEAR CREEK
0.04 MI NE OF PARK AVE, Garrett, MD
Over: BEAR CREEK
0.17 MI SE WALNUT ST, Garrett, MD
Over: BEAR CREEK
0.1 MI SW ACC BEAR CR RD, Garrett, MD
Over: WINTERS RUN
0.87 MILE NORTH OF US 1, Harford, MD
Over: BYNUM RUN
0.25 MILE NORTH OF MD 24, Harford, MD
Over: BROAD CREEK
0.4 MILE NORTH OF MD 543, Harford, MD
Over: SWAN CREEK
0.84 MILE NORTH OF MD 22, Harford, MD
Over: DEER CREEK
1.47 MILES S OF MD 440, Harford, MD
Over: WINTERS RUN
0.2 MILES S OF US 1, Harford, MD
Over: MA & PA RAILROAD (ABAND)
0.3 MILES S OF MD 152, Harford, MD
Over: MOUNTAIN BRANCH
0.3 MILES W OF SINGER RD, Harford, MD
Over: GRAYS RUN
Milepost M83.1, Harford, MD
Over: SUSQUEHANNA RIVER,PA RR
HARFORD-CECIL CO LINE, Harford, MD
Over: GUILFORD BRANCH
0.26 M S OF GUILFORD ROAD, Howard, MD
Over: SOUTH BR PATAPSCO RIVER
ON CARROLL CO LINE, Howard, MD
Over: PEDESTRIAN WALKWAY
1.56 MILES N OF MD 175HC, Howard, MD
Over: GUILFORD BRANCH
0.05 MILE EAST OF US 1, Howard, MD
Over: GUILFORD BRANCH
0.418 MILE SOUTH OF US 1, Howard, MD
Over: MIDDLE PATUXENT RIVER
2.7 MI S OF MD RTE 144, Howard, MD
Over: CATTAIL CREEK
0.1 MI W CARRS MILL RD, Howard, MD
Over: LITTLE PATUXENT RIVER
0.5 MI E CENTENNIAL LANE, Howard, MD
Over: MIDDLE PATUXENT RIVER
0.01 MI E OF US RTE 29, Howard, MD
Over: HAMMOND BRANCH
0.18 MI N OF FULTON RD, Howard, MD
Over: SHIPYARD CREEK
1.20 MILES WEST OF MD 21, Kent, MD
Over: RADCLIFF CREEK
0.82 MILE SOUTH OF MD 213, Kent, MD
Over: HERRING BRANCH
0.46 M S OF CECIL CO LINE, Kent, MD
Over: SPILLWAY OF CHESTER RIVE
0.12 M S OF COLLINS AVE, Kent, MD
Over: CYPRESS BRANCH
0.4 MI S OF MD RTE 330, Kent, MD
Over: STONEY CREEK
10M W STONE LAKE RD, Montgomery, MD
Over: WATTS BRANCH
0.18 MILE WEST OF IS 270, Montgomery, MD
Over: NORTHWEST BRANCH
0.27 M S OF LOCKWOOD DR, Montgomery, MD
Over: DRY SENECA CREEK
1.4 MILES WEST OF MD 28, Montgomery, MD
Over: ROCK CREEK
0.34 M E OF OLDE MILL RUN, Montgomery, MD
Over: GREAT SENECA CREEK
0.23 MI S OF WATKINS RD, Montgomery, MD
Showing 1,801-1,850 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.