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)

W RD SE

Fair

Over: EAST LOW CANAL

W SE 1.95 S of I-90, Grant, WA

Built 1951 Load: 28.1 t ADT: 30

ALDER STREET

Fair

Over: PARKER HORN

MOSES LAKE CITY, Grant, WA

Built 1958 Load: 28.5 t ADT: 29,630

2 RD NW

Fair

Over: IRRIGATION LATERAL

2 NW .2 W of P-NW, Grant, WA

Built 1952 Load: 29.0 t ADT: 346

S RD NW

Fair

Over: IRRIGATION LATERAL

S NW 0.01 S of 9, Grant, WA

Built 1953 Load: 29.0 t ADT: 663

I-90

Fair

Over: PELICAN HORN

0.9 E JCT SR 171, Grant, WA

Built 1957 Load: 29.8 t ADT: 10,515

I-90

Fair

Over: PELICAN HORN

0.9 E JCT SR 171, Grant, WA

Built 1958 Load: 29.8 t ADT: 10,515

9 ROAD NW

Fair

Over: IRRIGATION LATERAL

9 NW 0.2 East of E NW, Grant, WA

Built 1950 Load: 29.9 t ADT: 463

11.5 RD NW

Fair

Over: WASTEWAY

11.5 NW 0.1 W of H NW, Grant, WA

Built 1953 Load: 30.8 t ADT: 63

PINTO RIDGE ROAD

Fair

Over: MAIN CANAL

Pinto Ridge @ Main Canal, Grant, WA

Built 1977 Load: 32.1 t ADT: 493

SR 282

Fair

Over: GN RY

0.1 E JCT SR 28, Grant, WA

Built 1959 Load: 32.7 t ADT: 8,702

I-90

Fair

Over: WEBER COULEE

10.7 E JCT SR 17, Grant, WA

Built 1967 Load: 42.6 t ADT: 5,894

I-90

Fair

Over: WEBER COULEE

10.7 E JCT SR 17, Grant, WA

Built 1967 Load: 42.6 t ADT: 5,894

FIRST AVENUE NW

Fair

Over: DRY CREEK

0.4 W SR 28, Grant, WA

Built 1948 Load: 42.8 t ADT: 5,280

SR 262

Fair

Over: O'SULLIVAN DAM OUTLET

16.6 N JCT SR 26, Grant, WA

Built 1973 Load: 42.8 t ADT: 1,559

I-90

Fair

Over: WEBER COULEE

12.2 E JCT SR 17, Grant, WA

Built 1967 Load: 43.5 t ADT: 5,894

I-90

Fair

Over: WEBER COULEE

12.2 E JCT SR 17, Grant, WA

Built 1967 Load: 43.5 t ADT: 5,894

SR 28

Fair

Over: CRAB CREEK

13.2 E JCT SR 17, Grant, WA

Built 1969 Load: 44.4 t ADT: 580

WAHATIS PEAK ROAD

Fair

Over: WAHLUKE BRANCH CANAL

(White Bluffs Wasteway -, Grant, WA

Built 1967 Load: 48.3 t ADT: 1

SR 262

Fair

Over: GENERATOR BYPASS CHUTE

17.5 N JCT SR 26, Grant, WA

Built 1989 Load: 49.0 t ADT: 1,559

Martin Rd

Good

Over: Lateral Canal

Martin Rd @ H-NW, Grant, WA

Built 2015 Load: 7.8 t ADT: 443

Farm Access

Good

Over: West Canal W27 Lateral

West Canal W27 Lateral St, Grant, WA

Built 1998 Load: 9.3 t ADT: 5

SR 174

Good

Over: COLUMBIA BASIN CANAL

1.3 E DOUGLAS CO, Grant, WA

Built 1949 Load: 12.6 t ADT: 1,437

G RD NW

Good

Over: WEST CANAL

G NW 0.2 N of SR 28, Grant, WA

Built 1977 Load: 14.6 t ADT: 50

U ROAD SE

Good

Over: WEBER COULEE

U SE at 1 SE, Grant, WA

Built 1954 Load: 16.5 t ADT: 1,086

U ROAD SE

Good

Over: LIND COULEE

U SE .7 South of 4, Grant, WA

Built 1954 Load: 16.5 t ADT: 1,136

SR 283

Good

Over: WINCHESTER WASTEWAY

9.2 N JCT SR 281, Grant, WA

Built 1953 Load: 16.8 t ADT: 2,499

11 & V NE

Good

Over: FIELD RUNOFF

11 & V NE, Grant, WA

Built 1978 Load: 16.8 t ADT: 10

DODSON RD

Good

Over: LAT W20F BLK 89

Dodson 0.7 South of 7 NW, Grant, WA

Built 1993 Load: 17.5 t ADT: 1,489

O-SW

Good

Over: WEST LOW CANAL

O SW .06 N of Frenchmen, Grant, WA

Built 1997 Load: 17.8 t ADT: 155

E ROAD SW

Good

Over: Crab Creek

E SW at Crab Creek, Grant, WA

Built 1958 Load: 18.1 t ADT: 233

LOWER CRAB CR RD

Good

Over: LOWER CRAB CREEK

LWR Crab CR 5.2 E SR 243, Grant, WA

Built 1979 Load: 18.1 t ADT: 50

E RD SE

Good

Over: WEST CANAL

E SE .4 N of 12, Grant, WA

Built 1960 Load: 18.1 t ADT: 550

MAINTENANCE ROAD

Good

Over: WEST CANAL

WEST CANAL, Grant, WA

Built 1956 Load: 18.3 t ADT: 30

6 RD SE

Good

Over: LIND COULEE WASTEWAY

6 SE 1.8 East of U SE, Grant, WA

Built 1991 Load: 19.1 t ADT: 260

6 ROAD NE

Good

Over: EAST LOW CANAL BLK 41

6 NE 0.9 East of N NE, Grant, WA

Built 1989 Load: 19.1 t ADT: 215

7 ROAD NE

Good

Over: CRAB CREEK

7 NE .5 E of Stratford Rd, Grant, WA

Built 1952 Load: 19.1 t ADT: 2,068

K RD NW

Good

Over: LAT. BL 73

K NW 0.2 North of SR 28, Grant, WA

Built 1999 Load: 19.1 t ADT: 184

8 ROAD SE

Good

Over: LIND COULEE WASTEWAY

8 SE .2 East of W SE, Grant, WA

Built 1988 Load: 19.4 t ADT: 212

R RD NW

Good

Over: LAT. BLK 73

13 th Avenue N, Grant, WA

Built 1995 Load: 19.4 t ADT: 385

P NW

Good

Over: CANAL W26A BLK 73

P NW .4 N of 11 NW, Grant, WA

Built 1993 Load: 19.4 t ADT: 546

Road 14.3 NW

Good

Over: WEST CANAL

14.3 NW 0.1 W of SR 28, Grant, WA

Built 1999 Load: 19.4 t ADT: 65

WHITE TRAIL

Good

Over: LAT 39.9 BLK 75

5 NW @ R NW, Grant, WA

Built 1994 Load: 20.1 t ADT: 5,333

RIDGEVIEW RD

Good

Over: WASTEWAY

Ridgeview .02 W of L NE, Grant, WA

Built 1994 Load: 20.1 t ADT: 465

FARM ACCESS

Good

Over: WEST CANAL, LATERAL W26C

WEST CANAL LATERAL W26C,, Grant, WA

Built 2015 Load: 20.3 t ADT: 20

DODSON ROAD

Good

Over: WEST CANAL BLK 86

Dodson Rd .4 N of 11 SW, Grant, WA

Built 1993 Load: 20.4 t ADT: 2,266

SAND DUNE ROAD

Good

Over: MOSES LAKE SPILLWAY

MOSES LAKE SPILLWAY, Grant, WA

Built 1962 Load: 20.7 t ADT: 50

HILL TOP RD

Good

Over: FRENCHMAN SPRINGS

Vantage Rd 1.0 W Silica, Grant, WA

Built 1931 Load: 20.7 t ADT: 169

Farm Access

Good

Over: West Canal W26C Lateral

West Canal W26C Lateral,, Grant, WA

Built 2007 Load: 20.8 t ADT: 20

19 NW

Good

Over: WEST CANAL

19 NW .6 W of B, Grant, WA

Built 1994 Load: 21.4 t ADT: 240

BASELINE EAST

Good

Over: WASTEWAY

Baseline 0.2 W of SR 17, Grant, WA

Built 1996 Load: 21.4 t ADT: 1,296

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

Related

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