South Dakota

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South Dakota
Road Conditions

According to the latest TRIP analysis of FHWA data, South Dakota's overall road conditions are moderate.

  • 14% of state roads are considered to be in poor condition.
  • 25% of state roads are considered to be in mediocre condition.
  • 17% of state roads are considered to be in fair condition.
  • 44% of state roads are considered to be in good condition.
Bridge Conditions

According to the latest FHWA data, South Dakota's overall bridge conditions are very concerning. 17.6% of state bridges are considered to be in poor condition, 49.3% are in fair condition, and 33.1% are considered to be in good shape, ranking the state as 4th in the nation according to the American Road Transportation Builders Association's deficiency rank (which takes into account the District of Columbia, as well as Puerto Rico).

There are 5,880 bridges in the state, comprising 1,835,769 sq meters of overall bridge deck area.

Funding Report

Apportionments under the Fixing America's Surface Transportation (FAST) Act:

2019 Total: $304,560,005.00

2020 Total (estimated, before post-apportionment set-asides, penalties, and sequestration): $312,313,885.00

2021: Reauthorization of 2020 funding levels through September 1, 2021

State Gas Tax (including federal 18.4 cpg and any ancillary fees): 48.40 cents per gallon

Apportionment (est.) from "Highway Infrastructure Programs" in Coronavirus Response and Relief Supplemental Appropriations Act, dated Dec. 2020 (source: AASHTO): $70,465,824

Latest Coverage

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The historic 8th Street Arch Bridge in downtown Sioux Falls, South Dakota is part of the city’s vision for its Big Sioux River Greenway. The bridge…
October 07, 2020

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Image: South Dakota DOT
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