Total bridges
78
Public highway bridges in Marshall County
County profile · official public datasets
Marshall County, OK
78 public highway bridges tracked in the FHWA National Bridge Inventory: 51.3% rated Good, 37.2% Fair, 11.5% Poor.
- 78
- Public bridges
- 51.3%
- Good condition
- 11.5%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Marshall County pairs a higher-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- 61st
- of 77 on Poor share
- 11.5%
- Poor-condition share
- 78
- public highway bridges
- 1968
- 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.
Marshall County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Marshall County ranks #61 of 77 Oklahoma counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 11.5%). Marshall County, Oklahoma contains 78 public highway bridges. Roughly 51.3% are rated “Good,” 37.2% “Fair,” and 11.5% “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
51.3%
40 of 78 rated 7-9
Fair condition
37.2%
29 of 78 rated 5-6
Poor condition
11.5%
9 of 78 rated 4 or below
In-state Poor-share rank
#61 of 77
Among Oklahoma counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 78 NBI-tracked bridges by lowest applicable component rating.
Good 51.3% (40)
Fair 37.2% (29)
Poor 11.5% (9)
Marshall County's Poor-condition bridges carry 800 vehicle crossings a day
That is 0.8% of the county's reported daily bridge traffic on 11.5% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 89 crossings a day against 738 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 78 of 78 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
55.1% of Marshall County's bridges have passed the 50-year mark
43 of the 78 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 51.3% 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 12.5% of the county's Poor-condition bridge traffic
N3580 MOORE RD over ROCK CREEK, built 1936, carries 100 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 9-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 800 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Marshall County's bridges were built
78 bridges with a recorded construction year, grouped by decade
- 1930s
1930–1939
20 bridges
- 1940s
1940–1949
12 bridges
- 1950s 3
1950–1959
3 bridges
- 1960s 7
1960–1969
7 bridges
- 1970s 1
1970–1979
1 bridges
- 1980s
1980–1989
13 bridges
- 1990s
1990–1999
8 bridges
- 2000s 5
2000–2009
5 bridges
- 2010s 6
2010–2019
6 bridges
- 2020s 3
2020–2029
3 bridges
What this shows Construction peaked in the 1930s, when 20 of the county's bridges still in the inventory were built, which is 25.6% of those with a recorded year. That cohort is now 85 to 94 years old in the 2024 inventory. Its average build year is 1968, 9 years older than the Oklahoma average of 1977.
How Marshall County compares with Oklahoma's closest counties by inventory size
The 5 Oklahoma counties nearest Marshall County in number of bridges, with their condition splits. Its 11.5% Poor share is the 5th-lowest of these 6. Its average build year of 1968 against a peer-group mean of 1974 is 6 years older.
Showing the 5 closest of 76 Oklahoma counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Harper County | 128 | 33.6% | 64.8% | 1.6% | 1975 |
| Nowata County | 126 | 44.4% | 42.9% | 12.7% | 1980 |
| Texas County | 111 | 40.5% | 58.6% | 0.9% | 1974 |
| Harmon County | 106 | 75.5% | 23.6% | 0.9% | 1968 |
| Cimarron County | 93 | 49.5% | 49.5% | 1.1% | 1972 |
| Marshall County (this page) | 78 | 51.3% | 37.2% | 11.5% | 1968 |
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 Marshall 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 Marshall County, both outside Oklahoma so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside OK (78 bridges here).
- Winston County, AL · 78 bridges
- Marion County, FL · 78 bridges
- Bryan County, GA · 78 bridges
- Macon County, GA · 78 bridges
Similar average build year
Nearest mean year-built outside OK (1968 here).
- Montgomery County, PA · avg 1968 · 828 bridges
- San Joaquin County, CA · avg 1968 · 644 bridges
- Providence County, RI · avg 1968 · 476 bridges
- Imperial County, CA · avg 1968 · 444 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (78)
N3480
FairOver: CREEK
2.5W 3.6 S OF MADILL, Marshall, OK
Built 1989 Load: 6.4 t ADT: 100
N3480
FairOver: CREEK
2.5W & 5.4S OF MADILL, Marshall, OK
Built 1940 Load: 8.2 t ADT: 100
TEXHOMA PARK ROAD
FairOver: ROOSTER CREEK
.7S U.S. 70, Marshall, OK
Built 1939 Load: 10.3 t ADT: 400
N3480
FairOver: CREEK
2.5W 3.6S OF MADILL, Marshall, OK
Built 1997 Load: 18.1 t ADT: 100
4808C
FairOver: CREEK
1.6 N ROBINSON CORNER, Marshall, OK
Built 1937 Load: 19.1 t ADT: 50
S.H. 70A
FairOver: CREEK
3.03 SE JCT US-70, Marshall, OK
Built 1932 Load: 20.9 t ADT: 1,300
S.H. 199
FairOver: CREEK
3.74 E JCT SH-99, Marshall, OK
Built 1938 Load: 21.8 t ADT: 1,600
S.H. 32
FairOver: LITTLE HOUSE CREEK
1.02 E JCT SH-99C, Marshall, OK
Built 1946 Load: 22.5 t ADT: 920
S.H. 199
FairOver: CREEK
0.40 SE JOHNSTON C/L, Marshall, OK
Built 1946 Load: 23.4 t ADT: 2,600
S.H. 32
FairOver: HOUSE CREEK
0.79 E JCT SH-99C, Marshall, OK
Built 1946 Load: 23.6 t ADT: 920
S.H. 32
FairOver: BRIAR CREEK
1.85 W JCT SH-99, Marshall, OK
Built 1946 Load: 23.6 t ADT: 920
S.H. 99
FairOver: GLASSES CREEK
1.19 NE JCT US-70, Marshall, OK
Built 1932 Load: 26.3 t ADT: 2,300
U.S. 70
FairOver: WHISKEY CREEK
0.54 SE JCT SH-99 EAST, Marshall, OK
Built 1933 Load: 28.1 t ADT: 10,200
S.H. 99
FairOver: CREEK
1.53 NE JCT US-70, Marshall, OK
Built 1932 Load: 28.6 t ADT: 2,300
N3530 GARY RD
FairOver: LITTLE GLASSES CREEK
.4 W 2.3 N OF KINGSTON, Marshall, OK
Built 1936 Load: 30.8 t ADT: 100
U.S. 70
FairOver: LITTLE GLASSES CREEK
4.95 SE JCT SH-99 EAST, Marshall, OK
Built 1946 Load: 32.7 t ADT: 6,300
U.S. 70
FairOver: LITTLE HAUANI CREEK
2.71 E CARTER C/L, Marshall, OK
Built 1960 Load: 32.7 t ADT: 4,600
S.H. 99
FairOver: CREEK
0.47 SW JCT US-70, Marshall, OK
Built 1960 Load: 32.7 t ADT: 6,200
S.H. 99
FairOver: WHISKEY CREEK
0.07 SW JCT US-70, Marshall, OK
Built 1960 Load: 32.7 t ADT: 6,700
S.H. 199
FairOver: GLASSES CREEK
6.03 SE JOHNSTON C/L, Marshall, OK
Built 1960 Load: 32.7 t ADT: 8,600
4822C
FairOver: LITTLE HAUNANI CREEK
2.0 N 2. W OF LEBANNON, Marshall, OK
Built 1984 Load: 32.7 t ADT: 75
S.H. 1
FairOver: CREEK
0.14 NE JCT SH-199, Marshall, OK
Built 1971 Load: 35.9 t ADT: 2,400
S.H. 199
FairOver: CREEK
5.41 E JCT SH-99, Marshall, OK
Built 1951 Load: 37.9 t ADT: 1,200
4810C
FairOver: BRIER CREEK
1.3 MI E OF POWELL, Marshall, OK
Built 1982 Load: 38.1 t ADT: 100
S.H. 199
FairOver: CREEK
5.12 E JCT SH-99, Marshall, OK
Built 1951 Load: 39.7 t ADT: 1,200
FAS 4814
FairOver: BUNCOMBE CREEK
0.5 N 1.0 W OF SHAY, Marshall, OK
Built 1982 Load: 42.6 t ADT: 100
S.H. 99
FairOver: CREEK
3.83 NE JCT US-70, Marshall, OK
Built 1932 Load: 60.0 t ADT: 2,000
U.S. 70
FairOver: CREEK
1.63 E CARTER C/L, Marshall, OK
Built 1960 Load: 90.7 t ADT: 4,600
U.S. 70
FairOver: CREEK
1.72 W JCT SH-199, Marshall, OK
Built 1960 Load: 90.7 t ADT: 4,700
S.H. 199
GoodOver: GLASSES CREEK
2.07 E JCT SH-99, Marshall, OK
Built 1947 Load: 18.9 t ADT: 1,600
E2000
GoodOver: CREEK
1 E & 1.5 N OF MADILL, Marshall, OK
Built 1936 Load: 19.1 t ADT: 100
E2030 SPARLIN RD.
GoodOver: CREEK
2.8 W 1.S LITTLE CITY, Marshall, OK
Built 1936 Load: 19.1 t ADT: 25
4802C JAGGER RD
GoodOver: CREEK
3 E.& 2.5 N. OF MADILL, Marshall, OK
Built 1937 Load: 19.1 t ADT: 100
4810C
GoodOver: CREEK
.3E OF POWELL, Marshall, OK
Built 1937 Load: 19.1 t ADT: 100
D3540
GoodOver: CREEK
4.5 E & 4.5 N OF MADILL, Marshall, OK
Built 1938 Load: 19.1 t ADT: 100
D3540
GoodOver: BELL CREEK
4.0E & 4.0 N OF MADILL, Marshall, OK
Built 1938 Load: 19.1 t ADT: 100
4804C LINN RD.
GoodOver: CREEK
3.4 MI W OF LINN, Marshall, OK
Built 1949 Load: 19.1 t ADT: 100
4810C
GoodOver: CREEK
0.2 MI E OF POWELL, Marshall, OK
Built 1981 Load: 19.1 t ADT: 100
4804C
GoodOver: ROCK CREEK
0.7 W 2. N LITTLE CITY, Marshall, OK
Built 1982 Load: 19.1 t ADT: 100
4832C ENOS RD
GoodOver: SANDY CREEK
1.3 E 1.0 S OF SHAY, Marshall, OK
Built 1982 Load: 19.1 t ADT: 200
E2010
GoodOver: CREEK
3.7 E. & .5 N. OF MADILL, Marshall, OK
Built 1986 Load: 19.1 t ADT: 100
4804C
GoodOver: CREEK
3.5E & 1.5N OF MADILL, Marshall, OK
Built 1987 Load: 19.1 t ADT: 100
IRR N3395
GoodOver: WOLF CREEK
3.0 W 4.6 N OF TYLER, Marshall, OK
Built 1990 Load: 19.1 t ADT: 100
E2050 ARCHARD RD
GoodOver: CREEK
2.0 W 3. N OF KINGSTON, Marshall, OK
Built 1991 Load: 19.1 t ADT: 100
IRR 4820C
GoodOver: CREEK
1.0 S 1.0 W MC MILLAN, Marshall, OK
Built 1992 Load: 19.1 t ADT: 100
4808C PARISH RD.
GoodOver: CREEK
3.2 MI S LITTLE CITY, Marshall, OK
Built 1997 Load: 19.1 t ADT: 80
E2050
GoodOver: BRIAR CREEK
5.3W 3N .7W OF KINGSTON, Marshall, OK
Built 2000 Load: 19.1 t ADT: 75
E1975
GoodOver: CREEK
4N 1W OF MCMILLAN, Marshall, OK
Built 1940 Load: 19.1 t ADT: 100
N3490 (S. 5TH AVE)
GoodOver: CREEK
.1S OF JCT S.H. 99/5TH ST, Marshall, OK
Built 2011 Load: 19.1 t ADT: 100
E2030 W. SMILEY RD
GoodOver: CREEK
.8W OF U.S. 70 ON SMILEY, Marshall, OK
Built 2011 Load: 19.1 t ADT: 100
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.