Wyoming Statutes

Wyo. Stat. § 31-5-113 (2026)

Placement and maintenance of traffic-control

✓ current as of May 2026

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devices by department.

     (a) The department shall place and maintain such
traffic-control devices, conforming to the department's manual
and specifications, upon all state highways as it deems
necessary to indicate and to carry out this act or to regulate,
warn or guide traffic.

     (b) No local authority shall place or maintain any
traffic-control device upon any highway under the jurisdiction
of the highway department except with the highway department's
permission.

Notes of Decisions

Cited in 3 cases, 1985–2006 · leading case: Sponsel v. Park Cnty., 2006 WY 6 (Wyo. 2006).

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Sponsel v. Park Cnty., 2006 WY 6 (Wyo. 2006). · cites it 2× “[¶ 14] Wyo. Stat. Ann. § 31-5-113 (Lex-isNexis 2005) provides: (a) The department [of transportation] shall place and maintain such traffic-control devices, conforming to the department’s manual and specifications, upon all state highways as it deems necessary to indicate and to…”

Randolph v. Gilpatrick Const. Co., Inc., 702 P.2d 142 (Wyo. 1985). · cites it 2× “’ " Section 31-5-113, W.S.1977. 2 . There was a very minor deviation in the "15 miles per hour turn sign” originally planned for use by the Highway Department in the construction area.”

Miller v. Rissler & McMurry Co., 794 P.2d 91 (Wyo. 1990). “” W.S. 31-5-113: “(a) The highway department shall place and maintain such traffic-control devices, conforming to the commission’s manual and specifications, upon all state highways as it deems necessary to indicate and to carry out this act or to regulate, warn or guide traffic.”

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