US Bridges

Boise County, Idaho bridges

Boise County has 89 bridges and culverts in the National Bridge Inventory, the oldest built in 1914. 5 (6%) are rated poor. The most common type is stringer/multi-beam or girder (76%).

Bridges
89
Good
51%
Fair
44%
Poor
6%
5 bridges
Average age
46.8 yrs
Posted or closed
5

Map of bridges in Boise County

Green good, amber fair, red poor. Click a marker for details.

Search bridges in Boise County

Type at least two characters, or pick a condition or type, to search every bridge in the county.

Condition

6%poor
Good51%(45)
Fair44%(39)
Poor6%(5)

When they were built

<1900: 0 bridges<19001900s: 0 bridges19001910s: 1 bridges119101920s: 1 bridges119201930s: 3 bridges319301940s: 3 bridges319401950s: 10 bridges1019501960s: 13 bridges1319601970s: 14 bridges1419701980s: 13 bridges1319801990s: 15 bridges1519902000s: 7 bridges720002010s: 6 bridges620102020s: 3 bridges32020
Bridges built per decade. Year built as recorded in the inventory; reconstruction years are not included.

Busiest

  1. SH 55 over Mcleod Way
    10,500 vehicles/day
    Good
  2. SH 55 over Payette River
    8,800 vehicles/day
    Good
  3. SH 55 over Power Canal
    8,800 vehicles/day
    Good
  4. SH 55 over Uprr;horseshoe Bend Op
    7,800 vehicles/day
    Fair
  5. SH 55 over Payette River
    7,800 vehicles/day
    Fair

Longest

  1. SH 55 over Payette River
    376 ft
    Fair
  2. SH 55 over Payette River
    372 ft
    Good
  3. Brownlee Road over Payette River;gardena Br
    292 ft
    Fair
  4. SH 55 over N.Fk.Payette River
    287 ft
    Fair
  5. SH 55 over S.Fk.Payette River
    275 ft
    Fair

Oldest

  1. Shafer Creek Road over Shafer Creek
    Built 1914
    Poor
  2. Brownlee Road over Payette River;gardena Br
    Built 1920
    Fair
  3. STC3883;CLEAR Crk over Grimes Creek
    Built 1930
    Fair
  4. Grimes Creek Road over Grimes Creek
    Built 1935
    Fair
  5. SH 21 over Clear Creek;at Lowman
    Built 1939
    Fair

All bridges in Boise County

Busiest first · showing 1–89 of 89
Bridges in Boise County
BridgeLocationBuiltTypeLengthDaily trafficCondition
SH 55 over Mcleod Way
No. 000000000014758
13.7 NW Boise Wcl2024Arch - Deck66 ft10,500Good
SH 55 over Payette River
No. 000000000014761
Horseshoe Bend Scl2021Tee Beam372 ft8,800Good
SH 55 over Power Canal
No. 000000000014766
Horseshoe Bend1994Slab100 ft8,800Good
SH 55 over Uprr;horseshoe Bend Op
No. 000000000014770
2 N. Horseshoe Bend1971Stringer/Multi-beam or Girder198 ft7,800Fair
SH 55 over Payette River
No. 000000000014775
2.0 N. Horseshoe Bend1971Stringer/Multi-beam or Girder376 ft7,800Fair
SH 55 over S.Fk.Payette River
No. 000000000014790
At Banks1955Stringer/Multi-beam or Girder275 ft7,300Fair
SH 55 over N.Fk.Payette River
No. 000000000014800
3.1 N. Banks1984Stringer/Multi-beam or Girder287 ft4,700Fair
SH 21 over Wildlife Crossing
No. 000000000012818
18.0 N. Boise2010Stringer/Multi-beam or Girder75 ft3,500Good
SH 21 over Mores Cr; Dunnigan CR
No. 000000000012826
12.4 E. Boise2008Stringer/Multi-beam or Girder113 ft2,900Good
SH 21 over Mores Cr.;spencers Cabin
No. 000000000012831
10.5 S. Idaho City1995Stringer/Multi-beam or Girder92 ft2,900Good
SH 21 over Mores Cr.;grimes Cr.Road
No. 000000000012835
9.5 S. Idaho City1958Stringer/Multi-beam or Girder40 ft2,900Fair
Sma 3824;BNKS Lwmn over M.Fk.Payette R;crouch Br
No. 000000000019916
0.8 W Crouch2013Stringer/Multi-beam or Girder160 ft2,300Good
SH 21 over Mores Cr.;at Minniha CR
No. 000000000012840
8.9 S. Idaho City1990Slab81 ft2,000Fair
SH 21 over Mores Cr.;wildcat Gulch
No. 000000000012845
8.5 S. Idaho City1990Box Beam or Girders - Multiple63 ft2,000Good
SH 21 over Mores Cr.;stierman Gulch
No. 000000000012850
8.3 S. Idaho City1990Box Beam or Girders - Multiple70 ft2,000Good
SH 21 over Mores Cr;thorn Creek
No. 000000000012856
7.5 S. Idaho City2001Box Beam or Girders - Multiple82 ft2,000Good
SH 21 over Mores Cr;mckinley Gulch
No. 000000000012860
5.9 S. Idaho City1990Stringer/Multi-beam or Girder81 ft2,000Good
SH 21 over Mores Creek;big Gulch
No. 000000000012865
5.7 S. Idaho City1990Stringer/Multi-beam or Girder57 ft2,000Good
SH 21 over Mores Cr;n.Y. Gulch #1
No. 000000000012871
4.0 S. Idaho City2002Stringer/Multi-beam or Girder92 ft2,000Fair
SH 21 over Mores Cr;n.Y. Gulch #2
No. 000000000012876
3.8 S. Idaho City2002Stringer/Multi-beam or Girder92 ft2,000Fair
SH 21 over Elk Creek
No. 000000000012881
2.0 S. Idaho City2000Frame24 ft2,000Good
SH 21 over Clear Creek;at Lowman
No. 000000000012890
At Lowman1939Stringer/Multi-beam or Girder150 ft1,200Fair
SH 21 over Five Mile Creek
No. 000000000012893
8.0 E. Lowman2011Stringer/Multi-beam or Girder128 ft1,200Fair
SH 21 over S.Fk.Payette River
No. 000000000012900
15 Ne. Lowman1970Stringer/Multi-beam or Girder206 ft1,200Fair
SH 21 over S.Fk.Payette River
No. 000000000012905
18.9 Ne. Lowman1970Stringer/Multi-beam or Girder175 ft1,200Good
SH 21 over Warm Springs Creek
No. 000000000012910
19 Ne. Lowman1956Tee Beam150 ft1,200Fair
SH 21 over Chapman Creek
No. 000000000012915
18.7 Ne. Lowman1988Stringer/Multi-beam or Girder170 ft1,200Good
Sma 3824;BANKS Low over Rock Cliff Gini Half Brd
No. 000000000019917
0.5 S. 7.3 W. Lowman1991Stringer/Multi-beam or Girder115 ft690Fair
Sma 3824;BNKS Lwmn over Deadwood River
No. 000000000019920
22.1 E. Crouch1985Stringer/Multi-beam or Girder184 ft690Good
SH 21 over Canyon Creek
No. 000000000012920
24.5 Ne. Lowman1964Tee Beam90 ft620Good
SH 21 over Canyon Creek
No. 000000000012925
25 Ne. Lowman1964Tee Beam120 ft620Good
SH 21 over Canyon Creek
No. 000000000012930
28 Ne. Lowman1964Tee Beam115 ft620Good
Old Crouch Road over M Fk Payette R;crouch Br
No. 000000000026691
At Crouch2016Truss - Thru147 ft550Good
Stc 3826;ALDER Crk over S.Fk.Payette River
No. 000000000026651
1.2 S.E. Garden Valley2014Stringer/Multi-beam or Girder185 ft460Good
SH 21 over S.Fk.Payette R;lowman Br
No. 000000000012885
At Lowman1948Stringer/Multi-beam or Girder245 ft410Fair
Banks Grade over N. Fk. Payette River
No. 000000000026630
At Banks1957Stringer/Multi-beam or Girder129 ft350Good
Brownlee Road over Payette River;gardena Br
No. 000000000026700
At Gardena1920Truss - Thru292 ft350Fair
STC3883;CLEAR Crk over Grimes Creek
No. 000000000026645
5.0 S. 7.3 W. Idaho City1930Stringer/Multi-beam or Girder46 ft310Fair
Stc 3883;ROBIE Crk over Mores Creek
No. 000000000026666
13.6 S. 8.1 W. Idaho City1997Tee Beam93 ft310Fair
STC3832;PORTER Crk over Porter Creek
No. 000000000026640
Horseshoe Bend1988Stringer/Multi-beam or Girder22 ft300Fair
Pioneer Road over Shafer Creek
No. 000000000026675
1.0S 0.1W Horseshoe Bend1988Box Beam or Girders - Multiple55 ft290Good
Stc 3825 Cntrville over Elk Creek
No. 000000000019926
0.1 W. Idaho City1993Stringer/Multi-beam or Girder27 ft270Fair
Edna Ck.-L.Owl Rd. over Crooked River
No. 040203000001111
8 MI East of Pilot Peak1976Stringer/Multi-beam or Girder62 ft150Good
Long Gulch Road over M.Fk.Boise River
No. 000000000027903
10.0 N. 8.5 W. Prairie1954Stringer/Multi-beam or Girder185 ft130Fair
Anderson Creek RD over Anderson Creek
No. 000000000026693
0.2 E. 0.1 S. Crouch1983Stringer/Multi-beam or Girder30 ft100Poor
Dagget Creek RD over Mores Creek
No. 000000000026722
7.0 W. 10.5 S. Idaho City1991Stringer/Multi-beam or Girder49 ft100Fair
Grand Jean Road over Canyon Creek
No. 040205000001095
.25 MI N Wapiti Ck Tract1972Stringer/Multi-beam or Girder86 ft80Good
N.Fk. Boise R. Rd. over Mores Creek
No. 040203000001053
2 MI East of Idaho City1955Stringer/Multi-beam or Girder36 ft79Good
Boise Street over Power Canal
No. 000000000026678
Horseshoe Bend1995Stringer/Multi-beam or Girder101 ft60Good
Campgrd. Access over South Fork Payette River
No. 040205000001151
Kirkham Hot Springs Cg.1966Stringer/Multi-beam or Girder127 ft60Fair
N.Fk. Boise R. Rd. over North Fork Boise River
No. 040203000001170
(deer Park Bridge)1949Stringer/Multi-beam or Girder133 ft59Fair
Summit Flat Road over Clear Creek
No. 000000000026655
0.3 E. Pioneerville1974Stringer/Multi-beam or Girder37 ft50Fair
Summit Flat Road over Smith Creek
No. 000000000026660
0.5 E. Pioneerville1974Stringer/Multi-beam or Girder21 ft50Fair
Bunch Drive over M. Fk. Payette River
No. 000000000026692
5.5 N. 2.0 E. Crouch1995Stringer/Multi-beam or Girder92 ft50Fair
Edna Ck.-L.Owl Rd. over Pikes Fork Creek
No. 040203000003068
3 MI Ene of Edna CR Cg2005Stringer/Multi-beam or Girder34 ft50Good
Boulder Creek Road over Mores Creek
No. 040203000011103
5 MI NE Idaho City1982Stringer/Multi-beam or Girder30 ft50Poor
NFSR 347 over Grayback Gulch
No. 040203000032691
2.5 MI SW of Idaho City2018Stringer/Multi-beam or Girder90 ft50Good
Lightening CR RD over M. Fk. Payette
No. 040206000011516
8 MI North of Crouch Id1964Box Beam or Girders - Multiple134 ft50Fair
No Data Entered over Scriver Creek
No. 040206000035595
No Data Entered2022Stringer/Multi-beam or Girder40 ft50Good
N.Fk. Boise R. Rd. over Crooked River
No. 040203000001054
3 MI N of Barber Flat1957Stringer/Multi-beam or Girder106 ft40Good
Archie Ck. Road over South Fork Payette River
No. 040205000001099
5 MI East of Lowman Idaho1962Stringer/Multi-beam or Girder159 ft40Fair
Willis Flat Road over So.Fk.Payette River
No. 040205000001201
14 MI East of Lowman Id1959Stringer/Multi-beam or Girder128 ft35Fair
Cottonwd-Bannock over Mores Creek
No. 040203000001044
1 MI Ese of Idaho City1962Stringer/Multi-beam or Girder26 ft30Poor
Smith Creek Road over M.Fk.Payette R;r.Smith C
No. 000000000026723
3.2 N. 0.2 E. Crouch1973Stringer/Multi-beam or Girder125 ft25Fair
Pine Creek Road over Grimes Creek
No. 040203000001062
9.5 MI S.W. of Id City1947Stringer/Multi-beam or Girder52 ft25Fair
Rough Creek Road over Mores Creek
No. 040203000001169
8.5 MI NE Idaho City1979Stringer/Multi-beam or Girder30 ft25Good
Wapiti Road over South Fork Payette River
No. 040205000001181
Wapiti CR Summer Home1976Stringer/Multi-beam or Girder83 ft25Good
Park Ck. C.G. Rd. over Clear Creek
No. 040205000001188
3 MI N.E. of Lowman Id1957Stringer/Multi-beam or Girder37 ft25Good
Shafer Creek Road over Shafer Creek
No. 000000000026635
3.2S 1.4E Horseshoe Bend1914Truss - Thru37 ft20Poor
Shafer Creek Road over Shafer Creek
No. 000000000026637
5.2S 2.3E Horseshoe Bend1997Stringer/Multi-beam or Girder27 ft20Fair
Grimes Creek Road over Grimes Creek
No. 000000000026685
2.9 S. 6.7 W. Idaho City1935Stringer/Multi-beam or Girder42 ft20Fair
Grimes Creek Road over Grimes Creek
No. 000000000026695
0.9 N. 4.7 W. Idaho City1960Stringer/Multi-beam or Girder82 ft20Fair
Grimes Pass Road over Grimes Creek
No. 000000000026706
4.9S. 5.5E. Garden Valley1996Stringer/Multi-beam or Girder36 ft20Good
Avelene Ck. Road over Grimes Creek
No. 040203000001046
9 MI SW of Idaho City1954Stringer/Multi-beam or Girder53 ft20Poor
Long Creek Road over Clear Creek
No. 040205000001100
4.5 MI NE of Lowman Id1980Tee Beam56 ft20Good
Private Road over Mores Creek
No. 000000000034095
6.2 S. 5.2 W. Idaho City1985Box Beam or Girders - Multiple50 ft15Good
W. Willow-Big Owl over Crooked River
No. 040203000001056
2 MI E. of Edna Creek Cg1971Stringer/Multi-beam or Girder42 ft15Good
Deadwd.-Sct.Mt.Rd. over East Big Pine Creek
No. 040206000011517
4 MI NE Danskin2007Slab24 ft15Good
Hunter Ck-Crkd. R. over Bear River
No. 040203000001058
3 MI N.W. of Deer Park1965Stringer/Multi-beam or Girder40 ft12Good
Hunter Ck-Crkd. R. over Bear Creek
No. 040203000001059
3.8 MI N.W. of Deer Park1963Stringer/Multi-beam or Girder25 ft12Fair
Summit Flat Road over Grimes Creek
No. 040203000001067
5 MI SW of Pine Flats Cg1982Stringer/Multi-beam or Girder30 ft12Good
Hunter Ck-Crkd. R. over Crooked River
No. 040203000001172
6.8 MI Nnw of Deer Park1963Stringer/Multi-beam or Girder30 ft12Fair
Lt. Anderson Ck RD over Anderson Creek
No. 040206000001139
2 MI NE of Garden Valley1983Stringer/Multi-beam or Girder32 ft12Good
Trapper Ck. Road over North Fork Boise River
No. 040203000001057
2.5 MI SW of Deer Park1977Stringer/Multi-beam or Girder85 ft10Good
Spur 348J over Pikes Fork Creek
No. 040203000001060
Near NFSR 312/348J Junct1985Stringer/Multi-beam or Girder28 ft10Fair
Five Mile Road over Five Mile Creek
No. 040205000001096
1 MI N.E. of Helende C.G.1981Stringer/Multi-beam or Girder32 ft10Fair
Okeefe Creek Road over Clear Creek
No. 040205000001101
9 MI Nne of Lowman Id1966Stringer/Multi-beam or Girder40 ft10Good
Okeefe Creek Road over Clear Creek
No. 040205000001182
6.5 MI Nne of Lowman Id1966Stringer/Multi-beam or Girder40 ft10Fair
Willow Ck.-Crkd.R. over Crooked River
No. 040203000001051
7 MI NW Deer Park1970Stringer/Multi-beam or Girder36 ft5Good

Structure types in Boise County

Stringer/Multi-beam or Girder6876.4%
Tee Beam77.9%
Box Beam or Girders - Multiple66.7%
Truss - Thru33.4%
Slab33.4%
Arch - Deck11.1%
Frame11.1%

Other counties in Idaho