Thomas County, KS

61 public highway bridges

Thomas County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Thomas County, Kansas contains 61 public highway bridges. Roughly 45.9% are rated “Good,” 29.5% “Fair,” and 3.3% “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.

61
Total Bridges
45.9%
Good
29.5%
Fair
3.3%
Poor Condition

Condition Distribution

Good
45.9% (28)
Fair
29.5% (18)
Poor
3.3% (2)

All Bridges (61)

I-70 HWY WESTBOUND

Unknown

Over: US-24 HWY

JCT I-70 / US-24, Thomas, KS

Built 1966 ADT: 915

I-70 HWY EASTBOUND

Unknown

Over: U24 HWY

JCT I-70 / US-24, Thomas, KS

Built 1966 ADT: 915

COUNTY ROAD

Unknown

Over: I-70 HIGHWAY

3.97 MI EAST OF US-24, Thomas, KS

Built 1966 ADT: 6,002

I-70 HWY WESTBOUND

Unknown

Over: K-25 HIGHWAY

JCT I-70 / K-25, Thomas, KS

Built 1965 ADT: 3,767

I-70 HWY EASTBOUND

Unknown

Over: K-25 HIGHWAY

JCT I-70 / K-25, Thomas, KS

Built 1965 ADT: 3,767

COUNTRY CLUB DR.

Unknown

Over: I-70 HIGHWAY

1.00 MI EAST OF K-25, Thomas, KS

Built 1964 ADT: 6,220

LOCAL RD

Unknown

Over: I-70 HIGHWAY

4.76 MI SE OF K-25, Thomas, KS

Built 1965 ADT: 6,220

COUNTY ROAD

Unknown

Over: I70 HWY

7.02 MI SE OF K-25, Thomas, KS

Built 1965 ADT: 6,220

RS0886

Unknown

Over: I70 HWY, WL-EL

8.94MI SE JT K25, Thomas, KS

Built 1965 ADT: 6,220

LOCAL ROAD

Unknown

Over: I70 HWY EB/ WB

12.29 MI SE K25, Thomas, KS

Built 1965 ADT: 6,220

RS0624

Unknown

Over: I70 HWY EB/ WB

1.39 MI NW JCT US 83, Thomas, KS

Built 1965 ADT: 6,220

LOCAL ROAD

Unknown

Over: I70 HWY, WL-EL

2.29 MI SE US83, Thomas, KS

Built 1965 ADT: 5,456

US83 HWY

Unknown

Over: I70 HWY

JT I70/US83, Thomas, KS

Built 1965 ADT: 5,456

K25 HWY

Fair

Over: PRAIRIE DOG CREEK DRG

0.92 MI. NORTH OF US-24, Thomas, KS

Built 1934 Load: 20.0 t ADT: 2,430

K25 HWY

Fair

Over: PRAIRIE DOG CREEK DRG

1.19 MI. NORTH OF I-70, Thomas, KS

Built 1965 Load: 23.6 t ADT: 8,160

County Rd 14Q

Fair

Over: PRAIRIE DOG CREEK

2.1S 4.0W OF COLBY, Thomas, KS

Built 1967 Load: 23.7 t ADT: 40

I-70 HIGHWAY

Fair

Over: PRAIRIE DOG CREEK

3.73 MI EAST OF US-24, Thomas, KS

Built 1966 Load: 25.4 t ADT: 6,350

K25 HWY

Fair

Over: S FORK SOLOMON RIVER

8.90 MI N LOGAN CO LINE, Thomas, KS

Built 1940 Load: 28.1 t ADT: 490

PINE STREET

Fair

Over: TRIB. TO PRAIRIE DOG CR.

CITY OF COLBY, Thomas, KS

Built 1950 Load: 32.7 t ADT: 1,650

FRANKLIN STREET

Fair

Over: TRIB. TO PRAIRIE DOG CR.

CITY OF COLBY, Thomas, KS

Built 1950 Load: 32.7 t ADT: 4,800

COUNTRY CLUB DRIVE

Fair

Over: TRIB. TO PRAIRIE DOG CR.

CITY OF COLBY, Thomas, KS

Built 1950 Load: 32.7 t ADT: 1,465

County Rd 7

Fair

Over: MIDDLE FORK SAPPA CREEK

8.0N 4.0W OF LEVANT, Thomas, KS

Built 1981 Load: 35.9 t ADT: 25

I-70 HIGHWAY

Fair

Over: COUNTY ROAD

1.36 MI E. OF K-184, Thomas, KS

Built 1968 Load: 36.3 t ADT: 5,650

I-70 HIGHWAY

Fair

Over: PRAIRIE DOG CR DRAIN

1.13 MI WEST OF K-25, Thomas, KS

Built 1966 Load: 36.3 t ADT: 6,350

I-70 HWY WESTBOUND

Fair

Over: K-184 HWY

1.15 MI E. OF SH CO. L, Thomas, KS

Built 1968 Load: 37.2 t ADT: 5,650

I-70 HWY EASTBOUND

Fair

Over: K184 HWY

1.16 MI E. OF SH CO. L, Thomas, KS

Built 1968 Load: 37.2 t ADT: 5,650

I70 HWY, WL-EL

Fair

Over: N FORK SALINE RIVER

0.50MI SE JT U83, Thomas, KS

Built 1965 Load: 37.2 t ADT: 5,750

I70 HWY, WL-EL

Fair

Over: S FORK SALINE RIVER

3.74 MI SE US83, Thomas, KS

Built 1965 Load: 37.2 t ADT: 5,750

I-70 HIGHWAY

Fair

Over: SOUTH FORK SAPPA CREEK

4.01 MI E. OF K-184, Thomas, KS

Built 1966 Load: 38.1 t ADT: 5,650

I-70 HIGHWAY

Fair

Over: PRAIRIE DOG CREEK DRG

2.02 MI EAST OF US-24, Thomas, KS

Built 1966 Load: 42.6 t ADT: 6,350

I-70 HIGHWAY

Fair

Over: SOUTH FORK SAPPA CREEK

0.38 MI E. OF SH CO. L, Thomas, KS

Built 1967 Load: 50.8 t ADT: 6,200

US24 HWY

Good

Over: PRAIRIE DOG CREEK DRG

0.86 MI. EAST OF K-25, Thomas, KS

Built 1938 Load: 14.7 t ADT: 4,310

I-70 HIGHWAY

Good

Over: N FORK SOLOMON RIVER

3.50 MI SE OF K-25, Thomas, KS

Built 1965 Load: 15.4 t ADT: 6,550

Co Rd F (RS 624)

Good

Over: NORTH FORK SALINE RIVER

5.0S 0.4E OF MINGO, Thomas, KS

Built 1965 Load: 18.7 t ADT: 85

US24 HWY

Good

Over: PRAIRIE DOG CREEK

1.78 MI. WEST OF K-25, Thomas, KS

Built 1950 Load: 19.1 t ADT: 2,100

K25 HWY

Good

Over: PRAIRIE DOG CREEK

0.82 MI. NORTH OF US-24, Thomas, KS

Built 1934 Load: 20.0 t ADT: 2,430

US83 HWY

Good

Over: SOLOMON RIVER DRAINAGE

4.13 MI N JCT I70, Thomas, KS

Built 1985 Load: 20.0 t ADT: 2,280

Co Rd 36 (RS 1474)

Good

Over: NORTH FORK SALINE RIVER

13.5S OF MENLO, Thomas, KS

Built 1983 Load: 21.7 t ADT: 130

County Rd 32

Good

Over: SOUTH FORK SALINE RIVER

9.0S 8.0E OF MINGO, Thomas, KS

Built 1984 Load: 21.8 t ADT: 30

County Rd 24

Good

Over: TRIB TO S FORK SOLOMON

1.5N OF MINGO, Thomas, KS

Built 1964 Load: 22.4 t ADT: 60

K25 HWY

Good

Over: S FORK SAPPA CREEK DRG

6.49 MI. NORTH OF US-24, Thomas, KS

Built 1934 Load: 23.6 t ADT: 1,720

County Rd Z

Good

Over: PRAIRIE DOG CREEK

2.0N 1.6W OF REXFORD, Thomas, KS

Built 1986 Load: 23.8 t ADT: 25

Co Rd 11 (RS 1510)

Good

Over: PRAIRIE DOG CREEK

3.0S OF LEVANT, Thomas, KS

Built 1966 Load: 25.3 t ADT: 285

County Rd 15

Good

Over: PRAIRIE DOG CREEK

1.3S 4.0W OF COLBY, Thomas, KS

Built 1959 Load: 28.8 t ADT: 120

I-70 HWY WESTBOUND

Good

Over: UNION PACIFIC RAILROAD

5.81 MI SE OF K-25, Thomas, KS

Built 1965 Load: 29.9 t ADT: 6,550

I-70 HWY EASTBOUND

Good

Over: UNION PACIFIC RAILROAD

5.82 MI SE OF K-25, Thomas, KS

Built 1965 Load: 29.9 t ADT: 6,550

I-70 HIGHWAY

Good

Over: S FK SOLOMON R DRAIN

7.23 MI SE OF K-25, Thomas, KS

Built 1965 Load: 34.5 t ADT: 6,550

I-70 HWY WESTBOUND

Good

Over: COUNTY ROAD

4.53 MI E. OF K-184, Thomas, KS

Built 1966 Load: 38.1 t ADT: 5,650

I-70 HWY EASTBOUND

Good

Over: COUNTY ROAD

4.52 MI E. OF K-184, Thomas, KS

Built 1966 Load: 38.1 t ADT: 5,650

I-70 HWY WESTBOUND

Good

Over: COUNTY ROAD

7.49 MI E. OF K-184, Thomas, KS

Built 1966 Load: 38.1 t ADT: 5,650

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

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge 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.