Total bridges
389
Public highway bridges in Anne Arundel County
County profile · official public datasets
Anne Arundel County, MD
389 public highway bridges tracked in the FHWA National Bridge Inventory: 32.6% rated Good, 65.8% Fair, 1.5% Poor.
- 389
- Public bridges
- 32.6%
- Good condition
- 1.5%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Anne Arundel County pairs a top-quartile lowest Poor-condition share among rated counties in the state with a newer average build year than the state inventory.
- Top 13%
- lowest Poor share in state
- 1.5%
- Poor-condition share
- 389
- public highway bridges
- 1980
- avg year built
Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.
Anne Arundel County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Anne Arundel County ranks #3 of 24 Maryland counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 1.5%). Anne Arundel County, Maryland contains 389 public highway bridges. Roughly 32.6% are rated “Good,” 65.8% “Fair,” and 1.5% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.
Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Good condition
32.6%
127 of 389 rated 7-9
Fair condition
65.8%
256 of 389 rated 5-6
Poor condition
1.5%
6 of 389 rated 4 or below
In-state Poor-share rank
#3 of 24
Among Maryland counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 389 NBI-tracked bridges by lowest applicable component rating.
Good 32.6% (127)
Fair 65.8% (256)
Poor 1.5% (6)
Anne Arundel County's Poor-condition bridges carry 36,290 vehicle crossings a day
That is 0.3% of the county's reported daily bridge traffic on 1.5% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 6,048 crossings a day against 27,009 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.
Computed over the 389 of 389 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
37.8% of Anne Arundel County's bridges have passed the 50-year mark
147 of the 389 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 32.6% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.
Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.
One structure carries 61.6% of the county's Poor-condition bridge traffic
MD 710 over BRANCH OF BACK CREEK, built 1973, carries 22,351 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 6-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 36,290 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Anne Arundel County's bridges were built
389 bridges with a recorded construction year, grouped by decade
- 1900s 1
1900–1909
1 bridges
- 1920s 1
1920–1929
1 bridges
- 1930s 11
1930–1939
11 bridges
- 1940s 18
1940–1949
18 bridges
- 1950s 47
1950–1959
47 bridges
- 1960s 33
1960–1969
33 bridges
- 1970s 47
1970–1979
47 bridges
- 1980s
1980–1989
66 bridges
- 1990s
1990–1999
119 bridges
- 2000s 31
2000–2009
31 bridges
- 2010s 13
2010–2019
13 bridges
- 2020s 2
2020–2029
2 bridges
What this shows Construction peaked in the 1990s, when 119 of the county's bridges still in the inventory were built, which is 30.6% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year is 1980, 8 years newer than the Maryland average of 1972.
How Anne Arundel County compares with Maryland's closest counties by inventory size
The 5 Maryland counties nearest Anne Arundel County in number of bridges, with their condition splits. Its 1.5% Poor share is the 1st-lowest of these 6. Its average build year of 1980 against a peer-group mean of 1968 is 12 years newer.
Showing the 5 closest of 23 Maryland counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Frederick County | 486 | 43.2% | 54.1% | 2.7% | 1971 |
| Anne Arundel County (this page) | 389 | 32.6% | 65.8% | 1.5% | 1980 |
| Baltimore city County | 374 | 16% | 75.4% | 8.6% | 1964 |
| Howard County | 309 | 35.9% | 58.3% | 5.8% | 1978 |
| Washington County | 300 | 28.3% | 67% | 4.7% | 1956 |
| Harford County | 275 | 38.2% | 57.1% | 4.7% | 1973 |
Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Anne Arundel County's. Source: FHWA National Bridge Inventory, 2024 release.
Nationwide counties with similar inventory size or average build year
Two NBI-derived peer sets for Anne Arundel County, both outside Maryland so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside MD (389 bridges here).
- Arapahoe County, CO · 391 bridges
- Lee County, FL · 391 bridges
- Kingman County, KS · 391 bridges
- Wayne County, OH · 391 bridges
Similar average build year
Nearest mean year-built outside MD (1980 here).
- Tulsa County, OK · avg 1980 · 1,135 bridges
- Miami-Dade County, FL · avg 1980 · 1,057 bridges
- Pulaski County, AR · avg 1980 · 721 bridges
- McLennan County, TX · avg 1980 · 714 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (256)
SIMONDS STREET
FairOver: MIDWAY BRANCH
.03 MI W LEONARD WOOD AVE, Anne Arundel, MD
Built 1984 Load: 32.7 t ADT: 150
REDWOOD ROAD
FairOver: S SIDE FRANKLIN BRANCH
0.24 MI. N OF ROCK AVE, Anne Arundel, MD
Built 1944 Load: 32.7 t ADT: 120
LEONARD WOOD AVE
FairOver: MIDWAY BRANCH
0.10 MILES N ROCK AVE, Anne Arundel, MD
Built 1946 Load: 32.7 t ADT: 200
HAMMONDS LANE
FairOver: I-895 Spur
I-895 NB Milepost B1.12, Anne Arundel, MD
Built 1957 Load: 33.1 t ADT: 7,776
MD 176
FairOver: PINEY RUN
0.47 MI E OF MD 295, Anne Arundel, MD
Built 1949 Load: 33.6 t ADT: 2,452
IS 97
FairOver: MD 648E MTA LIGHT RAIL
0.78 MILE NORTH OF MD 176, Anne Arundel, MD
Built 1955 Load: 33.6 t ADT: 124,594
I-695 IL
FairOver: MD 10 Ramp B
0.60 MI. WEST OF MD 710, Anne Arundel, MD
Built 1972 Load: 33.6 t ADT: 20,547
MD 3 BU
FairOver: SAWMILL CREEK
0.06 MILE NORTH OF MD 270, Anne Arundel, MD
Built 1980 Load: 34.0 t ADT: 17,610
IS 695 RAMP G
FairOver: MTA LIGHT RAIL
0.04 MI N OF MD 170, Anne Arundel, MD
Built 1967 Load: 34.5 t ADT: 2,874
EMPLOYEE PARKING L
FairOver: LEVEL 3 EXIT RAMP FROM H
BWI EMPLOYEE PARK LOT, Anne Arundel, MD
Built 1991 Load: 34.5 t ADT: 221
US 50
FairOver: SEVERN RIVER
0.85 M W OF BR NO 0203900, Anne Arundel, MD
Built 1953 Load: 34.9 t ADT: 124,193
IS 695 IL
FairOver: MD 170 MTA LIGHT RAIL
0.48 MI N OF MD 648E, Anne Arundel, MD
Built 1967 Load: 34.9 t ADT: 74,085
IS 695 OL
FairOver: MD 170 MTA LIGHT RAIL
0.48 MI N OF MD 648E, Anne Arundel, MD
Built 1967 Load: 34.9 t ADT: 74,085
MD 32 WBR
FairOver: MD 3 NBR
0.26 MILE NORTH OF IS 97, Anne Arundel, MD
Built 1970 Load: 34.9 t ADT: 39,092
SPA ROAD
FairOver: SPA CREEK
0.5 MI N OF FOREST DRIVE, Anne Arundel, MD
Built 1970 Load: 34.9 t ADT: 5,131
SECOND LEVEL ENTRA
FairOver: SOUTH END OF CONSOLIDATE
CRCF - BWI AIRPORT, Anne Arundel, MD
Built 2003 Load: 34.9 t ADT: 113
MD 2
FairOver: SOUTH RIVER
0.86MI N OF MD 253, Anne Arundel, MD
Built 1983 Load: 35.4 t ADT: 53,221
MD 665 WB
FairOver: CHURCH CREEK
0.29 MILE EAST OF MD 2, Anne Arundel, MD
Built 1991 Load: 35.4 t ADT: 28,680
MD 436
FairOver: IS 595 RAMPS B & C
0.1 MI N OF MD 783, Anne Arundel, MD
Built 1991 Load: 35.8 t ADT: 5,110
MD 32 WBR
FairOver: MD 3 SBR
0.35 MILE NORTH OF IS 97, Anne Arundel, MD
Built 1970 Load: 35.8 t ADT: 39,092
CONWAY ROAD
FairOver: LITTLE PATUXENT RIVER
0.43 MI W OF MD 3, Anne Arundel, MD
Built 1966 Load: 35.8 t ADT: 9,663
MD 794
FairOver: GALLOWAY CREEK
0.76 MILE SOUTH OF MD 408, Anne Arundel, MD
Built 1997 Load: 36.3 t ADT: 1,571
MD 423
FairOver: BRANCH OF HERRING BAY
2.44 MILE EAST OF MD 2, Anne Arundel, MD
Built 1989 Load: 36.3 t ADT: 1,492
PATUXENT ROAD
FairOver: LITTLE PATUXENT RIVER
1.9 MI S OF WAUGH CH RD, Anne Arundel, MD
Built 1966 Load: 36.3 t ADT: 7,376
I-895 B NB
FairOver: MD 170
I-895NB Milepost B1.9, Anne Arundel, MD
Built 1957 Load: 36.7 t ADT: 14,912
I-895 B SB
FairOver: MD 170
I-895SB Milepost B1.9, Anne Arundel, MD
Built 1957 Load: 36.7 t ADT: 17,263
MD 648E
FairOver: MARLEY CREEK
0.11 MI S OF MD 270, Anne Arundel, MD
Built 1976 Load: 37.2 t ADT: 19,703
MD 450
FairOver: BACON RIDGE BRANCH
0.89 MI E OF RUTLAND RD, Anne Arundel, MD
Built 2008 Load: 37.3 t ADT: 7,520
IS 695 OL
FairOver: IS 97
0.63 MI S OF MD 648E, Anne Arundel, MD
Built 1957 Load: 37.6 t ADT: 97,630
HAMMONDS FERRY RD
FairOver: PATAPSCO RIVER
ON AA CO/ BALTO CO LINE, Anne Arundel, MD
Built 1961 Load: 37.6 t ADT: 8,800
MD 100 WBR
FairOver: OAKWOOD ROAD
0.82 MILE EAST OF MD 3BU, Anne Arundel, MD
Built 1963 Load: 37.6 t ADT: 35,961
MD 10 SBR
FairOver: MD 177
0.17 MI N OF MD 100, Anne Arundel, MD
Built 1988 Load: 37.6 t ADT: 43,170
TERMINAL ROAD
FairOver: SACHS BRANCH
BWI AIRPORT TERMINAL RD, Anne Arundel, MD
Built 2002 Load: 38.1 t ADT: 11,269
MD 295 SB
FairOver: AMTRAK STONY RUN
0.14 MI S OF IS 195, Anne Arundel, MD
Built 1950 Load: 38.5 t ADT: 67,307
8TH AVENUE NW
FairOver: SAWMILL CREEK
0.2 MI W OF MD 3, Anne Arundel, MD
Built 1972 Load: 38.5 t ADT: 12,944
UPPER LEVEL ROADWA
FairOver: LOWER LEVEL ROADWAY
BWI AIRPORT, Anne Arundel, MD
Built 1977 Load: 38.5 t ADT: 11,760
I-895 A NB ramp
FairOver: I 895
Milepost A0.4 (B0.7), Anne Arundel, MD
Built 1957 Load: 38.5 t ADT: 13,017
I-695 OL
FairOver: MD 10
0.7 MI EAST OF MD 2, Anne Arundel, MD
Built 1981 Load: 38.5 t ADT: 18,596
MD 256
FairOver: TRACEYS CREEK
1.73 MI W OF MD 258, Anne Arundel, MD
Built 1975 Load: 39.0 t ADT: 3,355
BELL BRANCH ROAD
FairOver: BELL BRANCH
1.2 MI EAST OF RTE 424, Anne Arundel, MD
Built 1970 Load: 39.0 t ADT: 656
IS 595
FairOver: MD 2 RAMP A (9)
0.45 MILE EAST OF MD 450, Anne Arundel, MD
Built 1991 Load: 39.5 t ADT: 123,940
MD 270
FairOver: MD 10
0.52 MI S OF MD 2, Anne Arundel, MD
Built 1977 Load: 39.5 t ADT: 16,262
MD 2
FairOver: BRANCH OF MARLEY CREEK
1.48 MI S OF MD 648E, Anne Arundel, MD
Built 1936 Load: 39.5 t ADT: 23,961
IS 97 RAMP F
FairOver: VETERANS HIGHWAY
IS 97 INTER W/NEW CUT RD, Anne Arundel, MD
Built 1989 Load: 39.5 t ADT: 10,999
RIVER BRIDGE WAY
FairOver: TRIB TO PATUXENT RIVER
750 FT W OF BROCK BR ROAD, Anne Arundel, MD
Built 1994 Load: 39.5 t ADT: 266
IS 595
FairOver: WEEMS CREEK
0.67 MI W OF MD 70, Anne Arundel, MD
Built 1953 Load: 40.4 t ADT: 123,940
MD 100 EBR
FairOver: OAKWOOD ROAD
0.82 MILE EAST OF MD 3BU, Anne Arundel, MD
Built 1963 Load: 40.4 t ADT: 35,961
MD 2
FairOver: MD 665
0.29 MILE SOUTH OF MD 393, Anne Arundel, MD
Built 1991 Load: 40.4 t ADT: 33,251
MD 168
FairOver: MD 295 NBR
0.49 MI E OF IS 695, Anne Arundel, MD
Built 1949 Load: 40.8 t ADT: 13,660
IS 97
FairOver: MD 176 (DORSEY ROAD)
0.78 MI S OF MD 648E, Anne Arundel, MD
Built 1955 Load: 40.8 t ADT: 105,110
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges
Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.