Total bridges
389
Public highway bridges in Anne Arundel County
County profile · official public datasets
389 public highway bridges tracked in the FHWA National Bridge Inventory: 32.6% rated Good, 65.8% Fair, 1.5% Poor.
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.
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.
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.
Total bridges
389
Public highway bridges in Anne Arundel County
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
Share of 389 NBI-tracked bridges by lowest applicable component rating.
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.
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.
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.
389 bridges with a recorded construction year, grouped by decade
1900–1909
1 bridges
1920–1929
1 bridges
1930–1939
11 bridges
1940–1949
18 bridges
1950–1959
47 bridges
1960–1969
33 bridges
1970–1979
47 bridges
1980–1989
66 bridges
1990–1999
119 bridges
2000–2009
31 bridges
2010–2019
13 bridges
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.
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.
Two NBI-derived peer sets for Anne Arundel County, both outside Maryland so the neighborhoods are not the same-state size table above.
Nearest county inventories outside MD (389 bridges here).
Nearest mean year-built outside MD (1980 here).
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Over: MD 100
@ MD 100, Anne Arundel, MD
Over: MD 295 SBR
0.49 MI E OF IS 695, Anne Arundel, MD
Over: TRIB TO STONY RUN
WEST OF 195, Anne Arundel, MD
Over: MD 2
0.55 MILE SOUTH OF MD 695, Anne Arundel, MD
Over: TRIBUTARY TO WEEMS CREEK
80 FT N OF JENNIFER ROAD, Anne Arundel, MD
Over: FURNACE BRANCH ROAD
0.37 MILE SOUTH OF IS 695, Anne Arundel, MD
Over: SEVERN RUN
0.81 MILE NORTH OF MD 3, Anne Arundel, MD
Over: SEVERN RUN
0.81 MILE NORTH OF MD 3, Anne Arundel, MD
Over: JUMPERS HOLE ROAD
0.67 MILE EAST OF MD 2, Anne Arundel, MD
Over: IS 97 EBR
4.6 MI E OF MD 424, Anne Arundel, MD
Over: CHURCH CREEK
0.29 MILE EAST OF MD 2, Anne Arundel, MD
Over: FURNACE CREEK
0.38 MI N OF MD 270, Anne Arundel, MD
Over: FURNACE CREEK
0.38 MI N OF MD 270, Anne Arundel, MD
Over: DEEP RUN
ON HOWARD COUNTY LINE, Anne Arundel, MD
Over: MARLEY CREEK
1 MI SW of MD 173, Anne Arundel, MD
Over: PATUXENT RIVER
ON PRINCE GEORGES CO LINE, Anne Arundel, MD
Over: DEEP RUN
ON HOWARD COUNTY LINE, Anne Arundel, MD
Over: MAGOTHY BRANCH
0.5 MI. SOUTH OF MD 100, Anne Arundel, MD
Over: ADMIRAL DRIVE
0.39 MILE EAST OF MD 2, Anne Arundel, MD
Over: TRIBUTARY TO BELL BRANCH
60 FT S OF BELL BRANCH RD, Anne Arundel, MD
Over: AMTRAK PATAPSCO RIVER
0.96 MI E OF MD 295, Anne Arundel, MD
Over: JUMPERS HOLE ROAD
0.67 MILE EAST OF MD 2, Anne Arundel, MD
Over: MD 713
1.04 MILES N OF MD 295, Anne Arundel, MD
Over: MD 100 RAMP A
IS 97 SB TO MD 100 EB, Anne Arundel, MD
Over: US 50/US 301
2.31 MI W OF MD 908D, Anne Arundel, MD
Over: SEVERN RUN
0.76 MI N OF MD 178A, Anne Arundel, MD
Over: MD 100 EBR
0.16 MILE EAST OF MD 2, Anne Arundel, MD
Over: IS 97
0.03 MILE SOUTH OF MD 100, Anne Arundel, MD
Over: MD 450
0.61 MI W OF MD 2, Anne Arundel, MD
Over: MD 695
0.12 MILE NORTH OF MD 711, Anne Arundel, MD
Over: MD 10
AT MD 10, Anne Arundel, MD
Over: ROCKHOLD CREEK
0.94 MI W OF MD 258, Anne Arundel, MD
Over: AMTRAK PATAPSCO RIVER
0.96 MI N OF MD 295, Anne Arundel, MD
Over: MD 32 WBR
0.36 MI S OF MD 3, Anne Arundel, MD
Over: BOULTERS WAY
0.07 MILE WEST OF MD 2, Anne Arundel, MD
Over: US 50/US 301
0.05 M N OF FURGUSON ROAD, Anne Arundel, MD
Over: MD 168
0.38 MI N OF MD 295, Anne Arundel, MD
Over: MD 2
0.16 W OF BR NO 0208000, Anne Arundel, MD
Over: MD 100
1.35 MI N OF MD 10, Anne Arundel, MD
Over: MD 10
0.56 MI N OF MD 2, Anne Arundel, MD
Over: MD 10
0.79 MI N OF MD 648E, Anne Arundel, MD
Over: MD 295
0.55 M S OF WRIGHT ROAD, Anne Arundel, MD
Over: HALL CREEK
1.0 MI WEST OF MD RTE 2, Anne Arundel, MD
Over: BOULTERS WAY
1.38 MI E OF MD 783, Anne Arundel, MD
Over: COLLEGE CREEK
0.42 MI S OF MD 435, Anne Arundel, MD
Over: MD 295
1.15 MI N OF MD 713, Anne Arundel, MD
Over: IS 97
0.3 MI S OF BUS 3, Anne Arundel, MD
Over: AMTRAK STONY RUN
0.14 MI S OF IS 195, Anne Arundel, MD
Over: MD 174
0.59 MILE NORTH OF IS 97, Anne Arundel, MD
Over: MD 174
0.59 MILE NORTH OF IS 97, Anne Arundel, MD
Read our methodology - how this data is sourced, computed, and verified.
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.