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: MILLS BRANCH
0.19 MILE WEST OF US 301, Kent, MD
Over: NORTHWEST BRANCH
0.6 MILES EAST OF MD 182, Montgomery, MD
Over: CHAPTICO CREEK
0.22 MILE WEST OF MD 238, St. Mary's, MD
Over: NORTH BRANCH SKIPTON CRE
0.86 MILE EAST OF MD 662B, Talbot, MD
Over: SAWPIT RUN
0.48 M E OF PACK HORSE RD, Allegany, MD
Over: FORCE MAIN
0.19 MI E OF MD 695, Baltimore, MD
Over: PATAPSCO RIVER
1.58 MI S OF MD RTE 144, Baltimore, MD
Over: CARROLL BRANCH
0.29 MI E OF CARROLL ROAD, Baltimore, MD
Over: GWYNNS FALLS
1 MI N OF MD 140, Baltimore, MD
Over: MIDDLE BRANCH
0.6 MI. E. OF RUSSELL ST., Baltimore city, MD
Over: I-895 SB ON RAMP
MILEPOST M13.13, Baltimore city, MD
Over: BIG PIPE CREEK
0.41 MI N OF MD 77, Carroll, MD
Over: SOUTH BRANCH MIDDLE RUN
0.59 MI N OF MD 32, Carroll, MD
Over: SWANSON CREEK
1 MI E WILKERSON ROAD, Charles, MD
Over: LITTLE HUNTING CREEK
0.84 MILE NORTH OF US 15, Frederick, MD
Over: MONOCACY RIVER
0.08 MILE EAST OF MD 880, Frederick, MD
Over: FLAT RUN
0.2 MILE SOUTH OF MD 140, Frederick, MD
Over: CSX TRANSPORTATION
0.75 M N OF GUILFORD ROAD, Howard, MD
Over: CSX TRANSPORTATION
0.75 M N OF GUILFORD ROAD, Howard, MD
Over: TIBER HUDSON BRANCH
0.01 MI E OF MAIN STREET, Howard, MD
Over: RED HILL BRANCH
0.4 MI N OF MD RTE 108, Howard, MD
Over: SENECA CREEK TRIB
1 MI N OF JCT SR 112, Montgomery, MD
Over: LITTLE FALLS BRANCH
0.1 MI SOUTH OF MD 190, Montgomery, MD
Over: TRIBUTARY TO NORTH BRANC
.5 MI NORTH OF MD-200, Montgomery, MD
Over: ROCK CREEK
1.3 MI SOUTH OF MD 547, Montgomery, MD
Over: SLIGO CREEK
0.23 MILE WEST OF MD 212, Prince George's, MD
Over: NORTHWEST BRANCH
0.73 MI N OF MD 500, Prince George's, MD
Over: TINKERS CREEK
0.59 MILES NORTH OF MD 22, Prince George's, MD
Over: WMATA RAILROAD
0.2 MI S OF I-95, Prince George's, MD
Over: CREEK RD
1.0 MILE WEST OF IS 70, Washington, MD
Over: GR TONOLOWAY CK, CO RDS
0.67 MILE W OF MD 144WB, Washington, MD
Over: MOORES RUN
0.28 MI N OF MD 36, Allegany, MD
Over: WARRIOR RUN
0.11 MILE SOUTH OF MD 636, Allegany, MD
Over: KELLY BLVD, CSX TRANS.
0.29 MI W OF KELLY RD, Allegany, MD
Over: WEEMS CREEK
0.67 MI W OF MD 70, Anne Arundel, MD
Over: AMTRAK
1.12 MILE NORTH OF MD 702, Baltimore, MD
Over: WESTERN RUN
0.1 MI S GREEN RD, Baltimore, MD
Over: REDHOUSE RUN
0.6 MI S OF MD 588, Baltimore, MD
Over: CSX
0.1 MI E OF LIBERTY MED C, Baltimore city, MD
Over: MDTA YARD, WETLANDS
RMP KEITH AVE TO I95S, Baltimore city, MD
Over: FAULKNER BRANCH
0.3 MILES NW OF MD 313, Caroline, MD
Over: BIG PIPE CREEK
1 MI E CROUSE MILL RD, Carroll, MD
Over: CONOWINGO CREEK
0.61 MI E OF OAKWOOD RD, Cecil, MD
Over: LITTLE OWENS CREEK
1.74 MILE NORTH OF MD 550, Frederick, MD
Over: BROAD CREEK
0.5 MILES NE OF MD 543, Harford, MD
Over: LITTLE PATUXENT RIVER
0.27 MILE NORTH OF US 29, Howard, MD
Over: CLARKS CREEK
0.3 MI N MD RTE 108, Howard, MD
Over: GR SENECA CR & GAME PRE
1.17 MILES N OF MD 124, Montgomery, MD
Over: SENECA CREEK
0.5 MI W OF SENECA ROAD, Montgomery, MD
Over: PISCATAWAY CREEK
2.13 MILES N OF MD 373, Prince George's, MD
Showing 2,351-2,400 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.