Every bridge in Day County, South Dakota

Name: Every bridge in Day County, South Dakota
Creator: Bridge Report Card
License: https://creativecommons.org/publicdomain/zero/1.0/

34 inventoried bridges, busiest first

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Day County, South Dakota, has 34 bridges in the 2025 National Bridge Inventory: 15 rated good, 10 fair, and 9 poor (as of August 20, 2026).
This index lists every one of them, busiest first; each links to its own condition record.

Bridge	Built	Vehicles/day	Condition
446A Avenue over Blue Dog Lake	2023	852	Good
SD027 over Antelope Ck	1970	428	Fair
SD027 over Ck	1970	428	Fair
130TH Street over Creek	1935	385	Fair
130TH Street over Creek	1930	376	Good
128TH Street over Creek	2011	307	Good
128TH Street over Creek	1993	307	Fair
425TH Avenue over Burlington Northern RR	1960	274	Poor
423RD Avenue over Burlington Northern RR	1938	218	Poor
SD027 over Mud Ck	1970	209	Fair
137TH Street over Creek	1926	115	Poor
12590-416th Avenue over Ck	1932	70	Poor
412TH Avenue over Creek	1985	69	Fair
412TH Avenue over Creek	1934	69	Fair
412TH Avenue over Creek	1920	69	Poor
412TH Avenue over Mud Creek	1930	69	Fair
415TH Avenue over Antelope Creek	2000	69	Good
448TH Avenue over Creek	1993	69	Good
416TH Avenue over Pickerel Creek	1995	42	Good
415TH Avenue over Antelope Creek	2004	30	Good
130TH Street over Creek	1930	27	Fair
133RD Street over Tributary to Mud Creek	2006	25	Good
133RD Street over Tributary to Mud Creek	2006	25	Good
420TH Avenue over Creek	2009	25	Good
416TH Avenue over Creek	2024	24	Good
127TH Street over Creek	2024	23	Good
127TH Street over Creek	1930	15	Poor
414TH Avenue over Creek	1930	15	Fair
418TH Avenue over Antelope Creek	1928	15	Poor
418TH Avenue over Tributary to Mud Creek	2006	15	Good
126TH Street over Antelope Creek	2021	13	Good
413TH Avenue over Creek	2023	12	Good
133RD Street over Creek	1935	10	Poor
421ST Avenue over Antelope Creek	1935	10	Poor