State profile · Below national median SD

Maryland bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Maryland — drawn straight from the FHWA National Bridge Inventory.

5,527
Public bridges
25.9%
Good condition
4.3%
Poor condition
4.3%
Structurally deficient

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 rated 0-4

Structurally Deficient

4.3%

236 bridges flagged for repair priority

-2.7pp vs national avg 7.0%

Maryland vs national bridge condition

Maryland — Good condition share 25.9%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Maryland — Structurally deficient share 14.2%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Bridge inventory deck-condition mix — Maryland (FHWA NBI)

Maryland25.909173149990956%49.140582594535914%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Maryland (FHWA NBI)

Counties (24)

Allegany 245 Anne Arundel 395 Baltimore 787 Baltimore city 380 Calvert 33 Caroline 70 Carroll 205 Cecil 194 Charles 94 Dorchester 47 Frederick 491 Garrett 139 Harford 275 Howard 310 Kent 44 Montgomery 522 Prince George's 582 Queen Anne's 88 Somerset 46 St. Mary's 50 Talbot 42 Washington 301 Wicomico 100 Worcester 82

Maryland vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Maryland on the same metric.

09

Connecticut

3.95% top marginal rate
Structure
Progressive
Burden @ $100K
$4,277

47

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426
Selected

24

Maryland

4.27% top marginal rate
Structure
Progressive
Burden @ $100K
$5,527

08

Colorado

4.32% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

41

Oregon

4.46% top marginal rate
Structure
Progressive
Burden @ $100K
$8,310

Bridges Needing Most Attention in Maryland

Six lowest-condition bridges in Maryland, ranked by composite NBI rating. Each is inspected at least every 24 months.

OLD SELBYSPORT RD

Poor

Over: BEAR CREEK

0.01 MI N OF WALNUT ST, Garrett, MD

Built 1920 Load: 2.7 t ADT: 30

ZION ROAD

Poor

Over: HAWLINGS RIVER

2.8 MILES NORTH OF MD 108, Montgomery, MD

Built 1930 Load: 4.5 t ADT: 2,440

ROXBURY ROAD

Poor

Over: BEAVER CREEK

0.1 MI W OF ALT US RTE 40, Washington, MD

Built 1920 Load: 7.3 t ADT: 533

TUFTON AVENUE

Poor

Over: WATERSPOUT RUN

2.63 MI. WEST MD 25, Baltimore, MD

Built 1920 Load: 7.7 t ADT: 7,735

MOHRS LANE

Structurally Deficient

Over: CSX RAILROAD

0.1 MI NW OF US RTE 40, Baltimore, MD

Built 1912 Load: 9.1 t ADT: 1,600

OLD MONTGOMERY RD

Structurally Deficient

Over: LITTLE PATUXENT RIVER

0.5 MI W OF US RTE 29, Howard, MD

Built 1935 Load: 10.0 t ADT: 10

All Bridges in Maryland

KENWOOD AVE

Unknown

Over: I-95

1.7 M N OF BALT CI LINE, Baltimore, MD

Built 2006 ADT: 150,400

ROSSVILLE BLVD

Unknown

Over: IS 95

0.62 MI N OF IS 695, Baltimore, MD

Built 2005 ADT: 161,850

KING AVE

Unknown

Over: I-95

.45 M N OF ROSSVILLE BLVD, Baltimore, MD

Built 1997 ADT: 161,850

MD 43 EB RAMP

Unknown

Over: I-95

I-95 Mile Marker 66.8, Baltimore, MD

ADT: 154,000

MD 43 EB

Unknown

Over: IS 95

0.57 MI W OF MD RTE 7, Baltimore, MD

Built 2013 ADT: 156,025

MD43 WB RAMP

Unknown

Over: I-95

I-95 Mile Marker 67.2, Baltimore, MD

ADT: 154,000

CowentonAve CO4033

Unknown

Over: I-95

Milepost M67.9, Baltimore, MD

Built 2005 ADT: 153,225

JOPPA ROAD

Unknown

Over: IS 95

MP 22.4 along I-95, Baltimore, MD

Built 2005 ADT: 153,225

CO6112

Unknown

Over: I-95

MP 69.7, Baltimore, MD

Built 1990 ADT: 153,225

Rafael Rd CO3940

Unknown

Over: I-95

MP 70.7, Baltimore, MD

Built 1991 ADT: 153,225

Bradshaw Rd CO3927

Unknown

Over: I-95

MP 70.7, Baltimore, MD

Built 1959 ADT: 176,100

IS 895 NB

Unknown

Over: HALETHORPE FARMS RD

Milepost M2.5, Baltimore, MD

Built 1957 ADT: 75

IS 895

Unknown

Over: HALETHORPE FARMS ROAD

Milepost M2.6, Baltimore, MD

Built 1957 ADT: 75

IS 895 NB

Unknown

Over: TRANSWAY ROAD

Milepost M3.6, Baltimore, MD

Built 1957

IS 895 SB

Unknown

Over: TRANSWAY ROAD

Milepost M3.6, Baltimore, MD

Built 1957 ADT: 100

IS 895 NB

Unknown

Over: IS 695

Milepost M3.7, Baltimore, MD

Built 1957 ADT: 101,000

IS 895

Unknown

Over: IS 695

Milepost M3.7, Baltimore, MD

Built 1957 ADT: 101,000

IS 895

Unknown

Over: HAMMONDS FERRY ROAD

Milepost M4.0, Baltimore, MD

Built 1957 ADT: 8,814

IS 895

Unknown

Over: HAMMONDS FERRY ROAD

Milepost M4.0, Baltimore, MD

Built 1957 ADT: 8,814

MD 295 NB

Unknown

Over: IS 895

Milepost M4.6, Baltimore, MD

Built 1957 ADT: 9,500

MD 295

Unknown

Over: IS 895

Milepost M4.6, Baltimore, MD

Built 1957 ADT: 17,900

I-895 NB

Unknown

Over: MD 648

MP 5.1, Baltimore, MD

Built 1957 ADT: 15,000

I-895 SB

Unknown

Over: MD 648

Milepost M5.1, Baltimore, MD

Built 1900 ADT: 15,000

I-695 IL

Unknown

Over: Peninsula Expressway

1.2 M West of Md 151, Baltimore, MD

Built 1998 ADT: 8,160

I-695 OL

Unknown

Over: Peninsula Expressway

1.2 M west of Md 151, Baltimore, MD

Built 1998 ADT: 8,160

CARROLLTON AVE PED

Unknown

Over: I-170

CARROLLTON & FRANKLIN ST., Baltimore city, MD

Built 1977

STRICKER STREET

Unknown

Over: I-170

STRICKER & FRANKLIN, Baltimore city, MD

Built 1975

I-83

Unknown

Over: CSXT RR AND NORTH AVENUE

0.03 MI W OF NORTH AVE, Baltimore city, MD

Built 1959 ADT: 27,082

I-83

Unknown

Over: ON RAMP TO NB I-83

NORTH AVE RMP TO NB I-83, Baltimore city, MD

Built 1959 ADT: 27,082

I-170 WB RAMP

Unknown

Over: M.L.K. BLVD

0.7 MI. N. OF FAYETTE ST., Baltimore city, MD

Built 1979 ADT: 200

I-170 EB

Unknown

Over: M.L.K. BLVD

0.7 MI. N. OF FAYETTE ST., Baltimore city, MD

Built 1979 ADT: 200

I-83 NB

Unknown

Over: CENTRE STREET

0.1 MI N OF ORLEANS ST, Baltimore city, MD

Built 1976 ADT: 3,940

US 40, ORLEANS STR

Unknown

Over: I-83 AND CITY STREETS

0.2 MI W OF I-83, Baltimore city, MD

Built 1936 ADT: 10,000

BIDDLE STREET

Unknown

Over: I-83, ABANDONED RR

0.2 MI N MD STATE PEN, Baltimore city, MD

Built 1930 ADT: 52,800

PRESTON ST

Unknown

Over: I-83 & AMTRAK

0.3 MI N MD STATE PEN, Baltimore city, MD

Built 1959 ADT: 52,800

ST PAUL STREET

Unknown

Over: I-83 AND AMTRAK

0.2 MI S OF NORTH AVE, Baltimore city, MD

Built 1960 ADT: 52,800

CHARLES STREET

Unknown

Over: I-83 AND AMTRAK

0.3 MI S OF NORTH AVE, Baltimore city, MD

Built 2003 ADT: 52,800

US 1, FULTON AVE

Unknown

Over: I-170

0.1 MI S OF FRANKLIN ST, Baltimore city, MD

Built 1975 ADT: 36,200

US 1, MONROE ST

Unknown

Over: I-170

0.1 MI S OF FRANKLIN ST, Baltimore city, MD

Built 1976 ADT: 36,200

CHASE STREET

Unknown

Over: I-83, ABANDONED RR

CHASE ST OVER JFX, Baltimore city, MD

Built 1968 ADT: 40,000

GUILFORD AVENUE

Unknown

Over: I-83 AND AMTRAK

0.3 MI S OF NORTH AVE, Baltimore city, MD

Built 1930 ADT: 40,000

CALVERT ST

Unknown

Over: I-83, AMTRAK

0.1 MI N OF MT ROYAL AVE, Baltimore city, MD

Built 1920 ADT: 40,000

MARYLAND AVENUE

Unknown

Over: I-83, MTA AND AMTRAK

0.2 MI S OF NORTH AVE, Baltimore city, MD

Built 1959 ADT: 52,800

HOWARD STREET

Unknown

Over: I-83,AMTRAK

0.2 MI N MOUNT ROYAL AVE, Baltimore city, MD

Built 1938 ADT: 14,503

MT ROYAL AVE

Unknown

Over: HOWARD STREET

0.1 MI N OF JOHN ST, Baltimore city, MD

Built 1938 ADT: 14,503

CAREY STREET

Unknown

Over: I-170

0.1 MI N OF SARATOGA ST, Baltimore city, MD

Built 1978 ADT: 18,100

GILMOR STREET

Unknown

Over: I-170

0.1 MI N OF SARATOGA ST, Baltimore city, MD

Built 1975 ADT: 18,100

FALLSWAY

Unknown

Over: I-83 & PARKING LOTS

0.03 MI S OF BIDDLE ST, Baltimore city, MD

Built 1968 ADT: 15,374

CALHOUN STREET

Unknown

Over: I-170

.01 MI N OF SARATOGA ST, Baltimore city, MD

Built 1977 ADT: 18,100

MOUNT STREET

Unknown

Over: I-170

0.1 MI N OF SARATOGA ST, Baltimore city, MD

Built 1976 ADT: 18,100

Showing 401-450 of 5,527 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.

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.