Total bridges
576
Public highway bridges in Prince George's County
County profile · official public datasets
576 public highway bridges tracked in the FHWA National Bridge Inventory: 36.6% rated Good, 60.2% Fair, 3.1% Poor.
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Prince George's County posts a better-than-median Poor-condition share among rated counties in the state across large county bridge 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, Prince George's County ranks #7 of 24 Maryland counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.1%). Prince George's County, Maryland contains 576 public highway bridges. Roughly 36.6% are rated “Good,” 60.2% “Fair,” and 3.1% “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
576
Public highway bridges in Prince George's County
Good condition
36.6%
211 of 576 rated 7-9
Fair condition
60.2%
347 of 576 rated 5-6
Poor condition
3.1%
18 of 576 rated 4 or below
In-state Poor-share rank
#7 of 24
Among Maryland counties with 5+ bridges, lower share ranks better
Share of 576 NBI-tracked bridges by lowest applicable component rating.
That is 0.9% of the county's reported daily bridge traffic on 3.1% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 10,371 crossings a day against 35,515 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 576 of 576 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
309 of the 576 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 36.6% 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 4 WBR over MD 717, built 1959, carries 46,652 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 18-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 186,683 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
576 bridges with a recorded construction year, grouped by decade
1900–1909
3 bridges
1910–1919
1 bridges
1920–1929
2 bridges
1930–1939
14 bridges
1940–1949
24 bridges
1950–1959
96 bridges
1960–1969
133 bridges
1970–1979
58 bridges
1980–1989
62 bridges
1990–1999
66 bridges
2000–2009
73 bridges
2010–2019
33 bridges
2020–2029
11 bridges
What this shows Construction peaked in the 1960s, when 133 of the county's bridges still in the inventory were built, which is 23.1% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1976) matches the Maryland average (1972).
The 5 Maryland counties nearest Prince George's County in number of bridges, with their condition splits. Its 3.1% Poor share is the 3rd-lowest of these 6. Its average build year of 1976 against a peer-group mean of 1973 is in line with the group.
Showing the 5 closest of 23 Maryland counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Baltimore County | 783 | 29.9% | 66.9% | 3.2% | 1971 |
| Prince George's County (this page) | 576 | 36.6% | 60.2% | 3.1% | 1976 |
| Montgomery County | 515 | 38.8% | 56.3% | 4.9% | 1978 |
| Frederick County | 486 | 43.2% | 54.1% | 2.7% | 1971 |
| Anne Arundel County | 389 | 32.6% | 65.8% | 1.5% | 1980 |
| Baltimore city County | 374 | 16% | 75.4% | 8.6% | 1964 |
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 Prince George's County's. Source: FHWA National Bridge Inventory, 2024 release.
Two NBI-derived peer sets for Prince George's County, both outside Maryland so the neighborhoods are not the same-state size table above.
Nearest county inventories outside MD (576 bridges here).
Nearest mean year-built outside MD (1976 here).
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Over: TRIB TO HENSON CREEK
.11 MI S OF BRINKLEY ROAD, Prince George's, MD
Over: TRIBUTARY TO HENSON CREE
0.17 MI W OF WALTERS LANE, Prince George's, MD
Over: TRIBUTARY TO HENSON CREE
0.15 MI W OF FISHER ROAD, Prince George's, MD
Over: BARNABY RUN
200 FEET S. OF OWENS ROAD, Prince George's, MD
Over: TRIB TO MATTAWOMAN CR
1.0 MI FROM MD 210, Prince George's, MD
Over: TRIB TO FEDERAL SPRG BR
.2 MI N OLD MARLBORO PIKE, Prince George's, MD
Over: NORTHEAST BRANCH
0.5 M EAST OF MD 193, Prince George's, MD
Over: CHARLES BRANCH
0.09 MI S OF MD 382, Prince George's, MD
Over: Unnamed Stream
0.7 mi E OLD GUNPOWDER RD, Prince George's, MD
Over: Unnamed Stream
0.7 mi E Old Gunpowder Rd, Prince George's, MD
Over: AMMENDALE BRANCH
0.1 mi W OF KONTERRA Dr, Prince George's, 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.