Portage County, WI

192 public highway bridges

Portage County Bridge Snapshot

Portage County, Wisconsin contains 192 public highway bridges in the FHWA National Bridge Inventory. Roughly 31.8% are rated “Good,” 34.4% “Fair,” 3.1% “Poor,” and 3.1% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in WI are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

192
Total Bridges
31.8%
Good
3.1%
Poor
3.1%
Structurally Deficient

Condition Distribution

Good
31.8% (61)
Fair
34.4% (66)
Poor
3.1% (6)
SD
3.1% (6)

All Bridges (192)

STH 13/34

Good

Over: MILL CREEK

1.9M N JCT CTH M, Portage, WI

Built 1994 Load: 37.3 t ADT: 2,600

LRD BENTLEY RD

Good

Over: PLOVER RIVER

0.2M E JCT CTH Y, Portage, WI

Built 1996 Load: 37.3 t ADT: 297

LRD COUNTY ROAD R

Good

Over: CN RR

1.0M S JCT STH 10, Portage, WI

Built 1999 Load: 37.3 t ADT: 2,899

USH10 EB

Good

Over: TOMORROW RIVER

AT TOMORROW RIVER, Portage, WI

Built 2004 Load: 37.3 t ADT: 7,150

USH 10 WB

Good

Over: TOMORROW RIVER

AT TOMORROW RIVER, Portage, WI

Built 2004 Load: 37.3 t ADT: 7,300

CTH Q

Good

Over: TOMORROW RIVER

1.6M E JCT CTY KK, Portage, WI

Built 2008 Load: 37.3 t ADT: 1,705

STH 66

Good

Over: BRANCH ROCKY RUN CREEK

2.4 MI S. JCT USH 10, Portage, WI

Built 2004 Load: 37.3 t ADT: 3,600

CTH X

Good

Over: LITTLE EAU CLAIRE RIVER

0.3M N JCT CTH DB, Portage, WI

Built 2014 Load: 37.3 t ADT: 518

LRD LINDEN RD

Good

Over: FLUME CREEK

0.9M N JCT CTH T, Portage, WI

Built 2023 Load: 37.3 t ADT: 66

LRD CTH R

Good

Over: LITTLE PLOVER RIVER

0.1M N JCT BLUEBIRD DR., Portage, WI

Built 2023 Load: 38.6 t ADT: 5,350

IH USH 51-IH 39

Good

Over: HAY MEADOW CREEK

1.5M N JCT USH B51 TO S, Portage, WI

Built 1972 Load: 38.9 t ADT: 29,800

USH B51-POST RD

Good

Over: PLOVER RIVER

2.8M N JCT STH 54 TO W, Portage, WI

Built 1982 Load: 38.9 t ADT: 13,400

LRD BRIDGE ROAD

Good

Over: LITTLE EAU PLINE RIVER

0.2M N JCT CTH E, Portage, WI

Built 1989 Load: 38.9 t ADT: 259

USH 10 WB

Good

Over: CANADIAN NATIONAL RR

AT CANADIAN NATIONAL RR, Portage, WI

Built 2004 Load: 38.9 t ADT: 7,600

LRD KEENER RD

Good

Over: TOMORROW RIVER

0.3M S JCT USH 10, Portage, WI

Built 2004 Load: 38.9 t ADT: 106

CTH Y

Good

Over: TRIB PLOVER R

5.85 M N JCT STH 66, Portage, WI

Built 2003 Load: 38.9 t ADT: 640

CTH G

Good

Over: MILL CREEK

2.2M S JCT USH 10, Portage, WI

Built 2017 Load: 39.2 t ADT: 146

LRD STONEY HILL RO

Good

Over: FLUME CREEK

0.7 MILES WEST OF CTH A, Portage, WI

Built 2017 Load: 39.5 t ADT: 102

CTH U

Good

Over: TEN MILE CREEK

1.7M N JCT STH 73, Portage, WI

Built 2011 Load: 40.2 t ADT: 669

CTH HH

Good

Over: WISCONSIN RIVER

1.2M W JCT HWY 66, Portage, WI

Built 1999 Load: 40.5 t ADT: 1,200

USH 10 EB

Good

Over: TOMORROW RIVER

1.8M E JCT CTH A TO S, Portage, WI

Built 2003 Load: 40.5 t ADT: 7,300

USH 10 WB

Good

Over: TOMORROW RIVER

1.8M E JCT CTH A TO S, Portage, WI

Built 2003 Load: 40.5 t ADT: 7,300

USH 10 EB

Good

Over: CANADIAN NATIONAL RR

AT CANADIAN NATIONAL RR, Portage, WI

Built 2004 Load: 40.5 t ADT: 12,800

STH 66

Good

Over: FLUME CR

1.0M E CTH I, Portage, WI

Built 2006 Load: 40.5 t ADT: 3,100

LRD BLUEBIRD LN

Good

Over: LITTLE PLOVER R

0.05 M W JCT EISENHOWER D, Portage, WI

Built 2003 Load: 40.5 t ADT: 106

CTH A

Good

Over: TOMORROW RIVER

0.6M S JCT USH 10, Portage, WI

Built 2019 Load: 41.5 t ADT: 940

CTH F

Good

Over: BUENA VISTA CREEK

0.3M S JCT CTH FF, Portage, WI

Built 2018 Load: 41.8 t ADT: 1,000

CTH B

Good

Over: WISCONSIN CENTRAL RR

0.3M NE JCT USH 10, Portage, WI

Built 2006 Load: 42.1 t ADT: 1,243

CTH DD

Good

Over: WAUPACA RIVER

0.1M E JCT CTH D, Portage, WI

Built 2003 Load: 42.1 t ADT: 273

STH 13/34

Good

Over: CNRR

0.2M S OF USH10, Portage, WI

Built 2011 Load: 42.1 t ADT: 2,600

LRD 95TH ST

Good

Over: BUENA VISTA CREEK

0.5M S JCT CTH FF, Portage, WI

Built 2022 Load: 42.1 t ADT: 100

USH 10 EB

Good

Over: CNRR

2.3 MILES E OF STH 13, Portage, WI

Built 2011 Load: 43.7 t ADT: 8,500

USH10 WB

Good

Over: CN RR

0.7 MILES W OF CTH O, Portage, WI

Built 2011 Load: 43.7 t ADT: 7,300

CTH J

Good

Over: CANADIAN NATIONAL RR

0.35 M S JCT USH 10, Portage, WI

Built 2008 Load: 43.7 t ADT: 4,200

STH 66EB

Good

Over: SKELLY CREEK

0.2M E JCT CTH II, Portage, WI

Built 2012 Load: 44.1 t ADT: 3,600

LRD FOUNTAIN GROVE

Good

Over: BEAR CREEK

0.2 MI E. RIVER RD, Portage, WI

Built 2007 Load: 45.4 t ADT: 52

CTH Q 2ND ST

Poor

Over: WIS CENTRAL LIMITED RR

0.1M S JCT USH 10, Portage, WI

Built 1908 Load: 22.7 t ADT: 790

LRD W ZINDA DR

Poor

Over: ROCKY RUN CREEK

0.5M W JCT USH 10, Portage, WI

Built 1971 Load: 29.2 t ADT: 1,221

CTH O

Poor

Over: MILL CREEK

1.0M S JCT CTY P, Portage, WI

Built 1975 Load: 29.2 t ADT: 1,250

LRD UNION ST

Poor

Over: FLUME CREEK

0.1M N JCT STH 66, Portage, WI

Built 1992 Load: 38.9 t ADT: 962

CTH WW

Structurally Deficient

Over: FOUR MILE CREEK

0.75M W. CTH FF, Portage, WI

Built 2007 Load: 19.4 t ADT: 565

CTH II

Structurally Deficient

Over: BEAR CREEK

1.1M N JCT CTH PP, Portage, WI

Built 1975 Load: 19.4 t ADT: 107

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial