Total bridges
81
Public highway bridges in Marquette County
County profile · official public datasets
Marquette County, WI
81 public highway bridges tracked in the FHWA National Bridge Inventory: 53.1% rated Good, 43.2% Fair, 3.7% Poor.
- 81
- Public bridges
- 53.1%
- Good condition
- 3.7%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Marquette County posts a top-quartile lowest Poor-condition share among rated counties in the state across rated county bridge inventory.
- Top 22%
- lowest Poor share in state
- 3.7%
- Poor-condition share
- 81
- public highway bridges
- 1988
- 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.
Marquette County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Marquette County ranks #16 of 72 Wisconsin counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.7%). Marquette County, Wisconsin contains 81 public highway bridges. Roughly 53.1% are rated “Good,” 43.2% “Fair,” and 3.7% “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
53.1%
43 of 81 rated 7-9
Fair condition
43.2%
35 of 81 rated 5-6
Poor condition
3.7%
3 of 81 rated 4 or below
In-state Poor-share rank
#16 of 72
Among Wisconsin counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 81 NBI-tracked bridges by lowest applicable component rating.
Good 53.1% (43)
Fair 43.2% (35)
Poor 3.7% (3)
Marquette County's Poor-condition bridges carry 1,062 vehicle crossings a day
That is 0.4% of the county's reported daily bridge traffic on 3.7% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 354 crossings a day against 3,336 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 81 of 81 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
16% of Marquette County's bridges have passed the 50-year mark
13 of the 81 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 53.1% 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 86.6% of the county's Poor-condition bridge traffic
CTH O over FOX RIVER, built 1961, carries 920 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 3-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 1,062 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Marquette County's bridges were built
81 bridges with a recorded construction year, grouped by decade
- 1940s 2
1940–1949
2 bridges
- 1950s 3
1950–1959
3 bridges
- 1960s 7
1960–1969
7 bridges
- 1970s 5
1970–1979
5 bridges
- 1980s
1980–1989
32 bridges
- 1990s 8
1990–1999
8 bridges
- 2000s
2000–2009
18 bridges
- 2010s 3
2010–2019
3 bridges
- 2020s 3
2020–2029
3 bridges
What this shows Construction peaked in the 1980s, when 32 of the county's bridges still in the inventory were built, which is 39.5% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1988) matches the Wisconsin average (1984).
How Marquette County compares with Wisconsin's closest counties by inventory size
The 5 Wisconsin counties nearest Marquette County in number of bridges, with their condition splits. Its 3.7% Poor share is the 1st-lowest of these 6. Its average build year of 1988 against a peer-group mean of 1985 is in line with the group.
Showing the 5 closest of 71 Wisconsin counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Kewaunee County | 93 | 47.3% | 47.3% | 5.4% | 1988 |
| Ashland County | 84 | 52.4% | 40.5% | 7.1% | 1983 |
| Marquette County (this page) | 81 | 53.1% | 43.2% | 3.7% | 1988 |
| Langlade County | 78 | 55.1% | 30.8% | 14.1% | 1984 |
| Polk County | 73 | 30.1% | 52.1% | 17.8% | 1983 |
| Burnett County | 67 | 44.8% | 49.3% | 6% | 1985 |
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 Marquette 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 Marquette County, both outside Wisconsin so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside WI (81 bridges here).
- Berrien County, GA · 81 bridges
- Fayette County, GA · 81 bridges
- Sumter County, GA · 81 bridges
- White County, GA · 81 bridges
Similar average build year
Nearest mean year-built outside WI (1988 here).
- Travis County, TX · avg 1988 · 1,544 bridges
- Grant County, OK · avg 1988 · 476 bridges
- Loudoun County, VA · avg 1988 · 442 bridges
- Licking County, OH · avg 1988 · 439 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (81)
LRD DOVER RD
FairOver: MECAN RIVER
0.3M W JCT STH 22, Marquette, WI
Built 1977 Load: 11.3 t ADT: 150
CTH D
FairOver: IH USH 51-IH 39
2.9M N JCT CTH CX, Marquette, WI
Built 1966 Load: 17.8 t ADT: 1,200
CTH CX
FairOver: NEENAH CREEK
0.4M S JCT USH 51, Marquette, WI
Built 1966 Load: 21.1 t ADT: 1,100
LRD PARK ST
FairOver: MONTELLO RIVER
0.1M N JCT STH 23, Marquette, WI
Built 1987 Load: 22.7 t ADT: 1,800
LRD GROUSE DR
FairOver: NEENAH CREEK
0.8M N JCT CTH X, Marquette, WI
Built 1970 Load: 24.3 t ADT: 80
LRD 3RD AVE
FairOver: WIDOW GREEN CREEK
1.6M N JCT STH 23, Marquette, WI
Built 1980 Load: 24.3 t ADT: 110
CTH B
FairOver: WESTFIELD CREEK
1.0M N JCT CTH E TO E, Marquette, WI
Built 1966 Load: 24.3 t ADT: 560
CTH E
FairOver: MECAN RIVER
0.3M W JCT STH 22, Marquette, WI
Built 1964 Load: 24.3 t ADT: 520
CTH B
FairOver: MONTELLO RIVER
0.6M N JCT CTH E, Marquette, WI
Built 1981 Load: 24.3 t ADT: 180
LRD S STATE ST
FairOver: WHITE RIVER
0.1M E JCT STH 73, Marquette, WI
Built 1982 Load: 25.9 t ADT: 1,200
IH USH51-IH39 SB
FairOver: LRD FAWN AVE
2.3M S JCT CTH M, Marquette, WI
Built 1966 Load: 27.5 t ADT: 12,800
IH USH51-IH39 NB
FairOver: CTH CX
1.3M N JCT STH 23 TO W, Marquette, WI
Built 1984 Load: 29.2 t ADT: 8,900
STH 22-MAIN ST
FairOver: FOX RIVER CANAL
0.4M N JCT CTH K, Marquette, WI
Built 1997 Load: 29.2 t ADT: 5,300
STH 22
FairOver: MECAN RIVER
4.0M N JCT CTH J, Marquette, WI
Built 1951 Load: 30.8 t ADT: 1,700
IH USH51-IH39 SB
FairOver: CTH O
2.0M S JCT STH 23, Marquette, WI
Built 1983 Load: 30.8 t ADT: 15,800
STH 23-MONTELLO AV
FairOver: MONTELLO RIVER
0.2M E JCT CTH Y, Marquette, WI
Built 1948 Load: 30.8 t ADT: 5,900
IH USH51-IH39 NB
FairOver: STH 23
2.0M N JCT CTH O, Marquette, WI
Built 1984 Load: 32.4 t ADT: 8,900
IH USH 51-IH 39
FairOver: CHAPMAN CREEK
2.5M N JCT STH 23 TO W, Marquette, WI
Built 1985 Load: 32.4 t ADT: 17,800
LRD FOX RD
FairOver: NEENAH CREEK
0.5M W JCT CTH A, Marquette, WI
Built 1986 Load: 32.4 t ADT: 110
STH 22-MAIN ST
FairOver: FOX RIVER
0.3M N JCT CTH K, Marquette, WI
Built 1997 Load: 32.4 t ADT: 5,300
STH 82
FairOver: NEENAH CR
0.9M E JCT CTH EE, Marquette, WI
Built 2003 Load: 32.4 t ADT: 4,100
CTH A
FairOver: WIDOW GREEN CREEK
0.6M S JCT CTH P, Marquette, WI
Built 1979 Load: 32.4 t ADT: 830
IH 39 SB-USH 51 SB
FairOver: NEENAH CREEK
1.8M S JCT CTH O, Marquette, WI
Built 1959 Load: 34.0 t ADT: 15,000
IH USH51-IH39 SB
FairOver: STH 23
4.2M S JCT CTH D, Marquette, WI
Built 1984 Load: 34.0 t ADT: 8,900
IH39 SB-USH51 SB-S
FairOver: CTH CX
2.9M S JCT CTH D, Marquette, WI
Built 1984 Load: 34.0 t ADT: 8,255
IH USH51-IH39 SB
FairOver: CTH Z
5.9M S JCT STH 21, Marquette, WI
Built 1987 Load: 34.0 t ADT: 6,500
CTH A
FairOver: NEENAH CREEK
2.4M S JCT CTH D, Marquette, WI
Built 1989 Load: 34.0 t ADT: 210
CTH N
FairOver: MECAN RIVER
1.9M N JCT STH 23, Marquette, WI
Built 1989 Load: 34.0 t ADT: 150
CTH D
FairOver: BUFFALO LAKE
0.2M S JCT CTH C, Marquette, WI
Built 1975 Load: 35.6 t ADT: 1,000
CTH E
FairOver: MONTELLO RIVER
0.2M E JCT CTH B TO S, Marquette, WI
Built 1966 Load: 35.6 t ADT: 560
STH 22-MAIN ST
FairOver: MONTELLO RIVER
0.5M N JCT CTH K, Marquette, WI
Built 1997 Load: 37.3 t ADT: 5,300
CTH N
FairOver: MECAN RIVER
1.0M N JCT STH 23, Marquette, WI
Built 2000 Load: 37.3 t ADT: 100
STH 22
FairOver: UNION PACIFIC RR CO
AT UP RR, Marquette, WI
Built 2002 Load: 38.9 t ADT: 2,000
LRD 10TH LANE
FairOver: WESTFIELD CREEK
0.4M N JCT CTH B, Marquette, WI
Built 1982 Load: 42.1 t ADT: 100
LRD 22ND AVE
FairOver: WHITE RIVER
1.0M N JCT CTH DD, Marquette, WI
Built 1984 Load: 43.7 t ADT: 160
LRD DIXIE AVE
GoodOver: MECAN RIVER
0.4M W JCT STH 22, Marquette, WI
Built 1979 Load: 24.3 t ADT: 80
LRD CHAUNCY ST
GoodOver: NEENAH CREEK
0.1M S JCT STH 82, Marquette, WI
Built 1984 Load: 29.2 t ADT: 360
IH USH51-IH39 NB
GoodOver: NEENAH CREEK
4.8M N JCT STH 78 TO S, Marquette, WI
Built 1984 Load: 30.8 t ADT: 15,800
IH USH51-IH39 NB
GoodOver: CTH O
6.7M N JCT STH 78 TO S, Marquette, WI
Built 1983 Load: 30.8 t ADT: 15,800
IH USH51-IH39 NB
GoodOver: CTH EAST SECOND ST/CTH J
6.5M N JCT STH 82, Marquette, WI
Built 1987 Load: 30.8 t ADT: 6,400
IH USH51-IH39 SB
GoodOver: CTH EAST SECOND ST(CTH J
5.0M S JCT CTH Z, Marquette, WI
Built 1987 Load: 30.8 t ADT: 6,400
LRD EDGEWOOD COURT
GoodOver: IH USH 51-IH 39
0.9M S JCT CTH J, Marquette, WI
Built 1987 Load: 32.4 t ADT: 200
IH USH51-IH39 NB
GoodOver: CTH Z
5.1M N JCT CTH J, Marquette, WI
Built 1987 Load: 32.4 t ADT: 6,650
STH 23
GoodOver: S BR NEENAH CREEK
0.3M E JCT CTH AA, Marquette, WI
Built 1981 Load: 32.4 t ADT: 1,800
STH 73-MAIN ST
GoodOver: WHITE RIVER
0.3M N JCT CTH E TO W, Marquette, WI
Built 1989 Load: 32.4 t ADT: 2,800
LRD WATER ST
GoodOver: MONTELLO RIVER
0.2M E JCT CTH J, Marquette, WI
Built 2001 Load: 32.4 t ADT: 100
LRD GROUSE DRIVE
GoodOver: IH USH 51-IH 39
AT JCT USH 51, Marquette, WI
Built 1984 Load: 34.0 t ADT: 120
CTH Z
GoodOver: CHAFEE CREEK
0.5 MI W JCT CTH Y, Marquette, WI
Built 2007 Load: 34.0 t ADT: 100
IH USH51-IH39 NB
GoodOver: LRD DOVER COURT
3.5M N JCT CTH J, Marquette, WI
Built 1987 Load: 35.6 t ADT: 13,000
CTH P
GoodOver: NEENAH CREEK
0.5M W JCT CTH O, Marquette, WI
Built 2004 Load: 35.6 t ADT: 160
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.