Grant County, WA

314 public highway bridges

Grant County Bridge Snapshot

Grant County, Washington contains 314 public highway bridges in the FHWA National Bridge Inventory. Roughly 60.5% are rated “Good,” 30.3% “Fair,” 1.6% “Poor,” and 1.6% 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 WA 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.

314
Total Bridges
60.5%
Good
1.6%
Poor
1.6%
Structurally Deficient

Condition Distribution

Good
60.5% (190)
Fair
30.3% (95)
Poor
1.6% (5)
SD
1.6% (5)

All Bridges (314)

O RD NW

Fair

Over: WEST CANAL

O NW 0.6 North of SR 28, Grant, WA

Built 1949 Load: 19.0 t ADT: 313

STRATFORD ROAD

Fair

Over: CRAB CREEK

Stratford .2 N of 10 NE, Grant, WA

Built 1952 Load: 19.8 t ADT: 1,464

FARM ACCESS

Fair

Over: WEST CANAL, LATERAL W26C

WEST CANAL LATERAL W26C,, Grant, WA

Built 1994 Load: 19.9 t ADT: 20

J RD NW

Fair

Over: WEST CANAL

0.3N SR 28, Grant, WA

Built 1949 Load: 20.0 t ADT: 155

RUFF-MARLIN ROAD

Fair

Over: ROCKY COULEE

W NE .1 N of 6, Grant, WA

Built 1974 Load: 20.1 t ADT: 464

36 ROAD NE

Fair

Over: DRY CREEK

36 NE .5 West of P, Grant, WA

Built 1972 Load: 20.4 t ADT: 108

X RD NE

Fair

Over: CON-NA-WAI CREEK

2.24 S. of 29 NE, Grant, WA

Built 1927 Load: 20.7 t ADT: 30

K ROAD NW

Fair

Over: LAT. BLK 73

K NW 0.02 N of 11.5 NW, Grant, WA

Built 1952 Load: 20.9 t ADT: 153

P ROAD NW

Fair

Over: LAT W39.9E2 BLK 75

P NW 0.4 S of 5 NW, Grant, WA

Built 1952 Load: 20.9 t ADT: 274

MARTIN ROAD

Fair

Over: WASTEWAY

12 NW 1.1 E of P, Grant, WA

Built 1952 Load: 20.9 t ADT: 392

I-90

Fair

Over: MOSES LAKE

23.8 E JCT SR 281, Grant, WA

Built 1958 Load: 21.7 t ADT: 14,251

B ROAD NW

Fair

Over: WEST CANAL BLK 701

B NW .2 N of 18 NW, Grant, WA

Built 1975 Load: 21.7 t ADT: 714

SR 155

Fair

Over: DEVILS CREEK

16.8 N JCT US 2, Grant, WA

Built 1949 Load: 21.8 t ADT: 959

F RD SE

Fair

Over: IRRIGATION LATERAL

F SE 0.5 S of 13 SE, Grant, WA

Built 1954 Load: 21.8 t ADT: 307

Q RD NW

Fair

Over: IRRIGATION LATERAL

Q NW .6 N of 12 NW, Grant, WA

Built 1952 Load: 21.8 t ADT: 315

12 ROAD SW

Fair

Over: ROYAL BRANCH CANAL BLK 8

12 SW .2 East of K, Grant, WA

Built 1956 Load: 21.8 t ADT: 72

B RD SE

Fair

Over: IRRIGATION CANAL

B SE 0.7 N of 12 SE, Grant, WA

Built 1953 Load: 21.8 t ADT: 325

I-90

Fair

Over: MOSES LAKE

23.8 E JCT SR 281, Grant, WA

Built 1958 Load: 22.0 t ADT: 14,251

M ROAD SE

Fair

Over: LIND COULEE WASTEWAY

M SE 0.3 North of SR 262, Grant, WA

Built 1953 Load: 22.0 t ADT: 1,125

E RD SE

Fair

Over: IRRIGATION LATERAL

0.8S 13SE, Grant, WA

Built 1954 Load: 22.7 t ADT: 113

9 RD NW

Fair

Over: IRRIGATION LATERAL

9 NW .01 W of S, Grant, WA

Built 1953 Load: 22.7 t ADT: 309

R RD NW

Fair

Over: IRRIGATION LAT.

R NW 0.9 N of 12 NW, Grant, WA

Built 1952 Load: 22.7 t ADT: 250

Martin Rd

Fair

Over: WASTEWAY

12 NW .1 West of R, Grant, WA

Built 1952 Load: 22.7 t ADT: 29

H ROAD NW

Fair

Over: WEST CANAL

H NW 0.4 North of SR 28, Grant, WA

Built 1949 Load: 23.6 t ADT: 271

I SW

Fair

Over: WEST CANAL

I SW .02 S of Frenchmen, Grant, WA

Built 1951 Load: 23.6 t ADT: 59

S RD NW

Fair

Over: IRRIGATION LATERAL

S NW 0.4 North of SR 28, Grant, WA

Built 1952 Load: 23.6 t ADT: 786

1 RD NW

Fair

Over: IRRIGATION LATERAL

1 NW .5 W of U, Grant, WA

Built 1956 Load: 23.6 t ADT: 231

M RD NW

Fair

Over: IRRIGATION LATERAL

M NW .6 N of 12, Grant, WA

Built 1952 Load: 23.6 t ADT: 247

J NE/Stratford Rd

Fair

Over: EAST LOW CANAL

Stratford Rd .4 N of 16, Grant, WA

Built 1990 Load: 23.7 t ADT: 1,201

FARM ACCESS

Fair

Over: WEST CANAL, LATERAL W26C

WEST CANAL LATERAL W26C,, Grant, WA

Built 1994 Load: 24.1 t ADT: 20

11 ROAD NW

Fair

Over: LAT. BLK 73

11 NW .01 W of R, Grant, WA

Built 1952 Load: 24.5 t ADT: 580

3 RD NW

Fair

Over: IRRIGATION LATERAL

3 NW 0.5 East of P NW, Grant, WA

Built 1952 Load: 24.5 t ADT: 121

H ROAD SE

Fair

Over: WEST CANAL BLK 80

H SE 0.6 S of 10 SE, Grant, WA

Built 1953 Load: 24.5 t ADT: 748

20 ROAD NE

Fair

Over: EAST LOW CANAL

20 NE @ EAST LOW CANAL, Grant, WA

Built 1947 Load: 24.9 t ADT: 317

M RD SW

Fair

Over: IRRIGATION LATERAL

M SW 0.4 S of 12 SW, Grant, WA

Built 1958 Load: 25.4 t ADT: 239

K SW S of 7 SW

Fair

Over: WEST CANAL

K SW .01 S of Frenchmen, Grant, WA

Built 1951 Load: 25.4 t ADT: 49

M RD SW

Fair

Over: WEST CANAL

M SW 1.2 North of 11 SW, Grant, WA

Built 1958 Load: 25.4 t ADT: 239

SR 281

Fair

Over: WEST CANAL

0.6 N JCT I-90, Grant, WA

Built 1964 Load: 25.6 t ADT: 5,451

20 ROAD NE

Fair

Over: CRAB CREEK

20 NE 0.1 East of E NE, Grant, WA

Built 1988 Load: 25.9 t ADT: 390

N RD SW

Fair

Over: IRRIGATION LATERAL

N SW 0.3 S of 12 SW, Grant, WA

Built 1958 Load: 26.3 t ADT: 74

E RD SW

Fair

Over: IRRIGATION LATERAL

E SW 1.2 N of 11 SW, Grant, WA

Built 1953 Load: 26.3 t ADT: 414

11 RD SE

Fair

Over: EAST LOW CANAL

11 SE 0.7 West of T SE, Grant, WA

Built 1952 Load: 26.3 t ADT: 20

9 NW

Fair

Over: WINCHESTER WW

9 NW .7 mile E of K NW, Grant, WA

Built 1953 Load: 26.6 t ADT: 617

SR 17

Fair

Over: ROCKY FORD CR

12.7 N JCT SR 171, Grant, WA

Built 1955 Load: 26.9 t ADT: 9,713

N RD NW

Fair

Over: IRRIGATION LATERAL

N NW 0.3 N of 11 NW, Grant, WA

Built 1952 Load: 27.2 t ADT: 158

O RD SW

Fair

Over: WEST CANAL

O SW 1.2 N of 11, Grant, WA

Built 1958 Load: 27.2 t ADT: 257

K RD SW

Fair

Over: IRRIGATION LATERAL

K SW 0.9 South of 11 SW, Grant, WA

Built 1958 Load: 27.2 t ADT: 85

URQUHART AVE(X NE)

Fair

Over: CRAB CREEK

0.03 S OF BURN ST, Grant, WA

Built 1972 Load: 27.9 t ADT: 170

CRESCENT BAR ROAD

Fair

Over: TRINIDAD SPRINGS

1.8S SR 28, Grant, WA

Built 1962 Load: 27.9 t ADT: 1,422

Farm Access

Fair

Over: West Canal DW224 Wastewa

West Canal DW224 Wasteway, Grant, WA

Built 2006 Load: 28.0 t ADT: 5

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