Gregory County, South Dakota bridges

Gregory County has 51 bridges and culverts in the National Bridge Inventory, the oldest built in 1920. 5 (10%) are rated poor. The most common type is culvert (31%).

Bridges: 51
Good: 29%
Fair: 61%
Poor: 10%; 5 bridges
Average age: 48.7 yrs
Posted or closed: 9

Map of bridges in Gregory County

Green good, amber fair, red poor. Click a marker for details.

Search bridges in Gregory County

Type at least two characters, or pick a condition or type, to search every bridge in the county.

Condition

Good29%(15)

Fair61%(31)

Poor10%(5)

When they were built

Bridges built per decade. Year built as recorded in the inventory; reconstruction years are not included.

Busiest

345 Avenue over South Fork Whetstone Ck
560 vehicles/day
Good
SD047 over Ck
552 vehicles/day
Fair
SD047 over Ck
552 vehicles/day
Fair
SD044 over Bull Ck
540 vehicles/day
Good
SD044 over Lone Tree Ck
540 vehicles/day
Fair

Longest

Oldest

297 Street over Ck
Built 1920
Poor
298 Street over Willow Ck
Built 1930
Fair
342 Avenue over Ck
Built 1932
Good
349 Avenue over Ponca Ck
Built 1949
Fair
290 Street over South Fork Whetstone Ck
Built 1949
Fair

All bridges in Gregory County

Busiest first · showing 1–51 of 51

Bridges in Gregory County
Bridge	Location	Built	Type	Length	Daily traffic	Condition
345 Avenue over South Fork Whetstone Ck No. 000000027135168	1.5E & 5.4N Burke	2001	Culvert	27 ft	560	Good
SD047 over Ck No. 000000027050102	2.2 S JCT Sd 44	1957	Slab	106 ft	552	Fair
SD047 over Ck No. 000000027050135	5.6 N JCT US 18	1957	Culvert	31 ft	552	Fair
SD044 over Bull Ck No. 000000027015080	1.4 E Tripp CO Line	1971	Slab	106 ft	540	Good
SD044 over Lone Tree Ck No. 000000027029080	2.1 W JCT Sd 47	1971	Slab	87 ft	540	Fair
SD044 over Dixon Ck No. 000000027032080	1.9 W JCT Sd 47	1971	Slab	100 ft	540	Fair
SD044 over Ck No. 000000027038080	1.2 W JCT Sd 47	1971	Culvert	26 ft	540	Fair
SD044 over Ck No. 000000027105075	5.3 E JCT Sd 47	1964	Stringer/Multi-beam or Girder	143 ft	504	Good
SD251 over Ponca Ck No. 000000027050216	2.6 S Jst US 18	1984	Slab	60 ft	400	Good
SD251 over Masdon Ck No. 000000027050241	5.1 S JCT US 18	1996	Culvert	25 ft	400	Good
SD047 over Ponca Ck No. 000000027120276	5.3 S JCT US 18 Burke	1961	Stringer/Multi-beam or Girder	185 ft	326	Fair
SD047 over Ck No. 000000027120321	2.8 N Nebraska State Line	1961	Slab	87 ft	326	Fair
354 Avenue over Ponca Ck No. 000000027220326	0.2W & 3.6S St. Charles	1952	Stringer/Multi-beam or Girder	166 ft	189	Poor
SD1806 over Whetstone Ck No. 000000027299221	8.0 N JCT US 18	1977	Stringer/Multi-beam or Girder	305 ft	157	Good
294 Street over Ponca Ck No. 000000027089250	3.1W & 3S Burke	1950	Stringer/Multi-beam or Girder	139 ft	140	Fair
333 Avenue over Ck No. 000000027010197	1.7S Dallas	1955	Slab	128 ft	135	Fair
349 Avenue over Ponca Ck No. 000000027165307	1W & 3.7S Herrick	1949	Stringer/Multi-beam or Girder	162 ft	120	Fair
333 Avenue over Bull Ck No. 000000027010073	4W & 0.7N JCT 44&47	1965	Slab	99 ft	114	Fair
333 Avenue over Bull Ck No. 000000027010139	4.7N Dallas	1958	Slab	80 ft	99	Fair
333 Avenue over Bull Ck No. 000000027010054	4W & 2.6N JCT 44&47	1965	Slab	99 ft	96	Fair
290 Street over South Fork Whetstone Ck No. 000000027209209	8.9E & 1.3N Burke	1949	Slab	129 ft	65	Fair
361 Avenue over Ck No. 000000027290347	0.5W & 5.5S Bonesteel	1978	Channel Beam	40 ft	65	Good
Randall Road over Randall Ck No. 000000027482325	3.5S & 18.2E Bonesteel	2003	Culvert	25 ft	65	Good
State Park RD over South Scalp Ck No. 000000027385280	11.4W & 2.0N Pickstown	1963	Box Beam or Girders - Multiple	55 ft	50	Poor
State Park RD over Randall Ck No. 000000027498312	1.0W & 2.0S Pickstown	2020	Tee Beam	103 ft	50	Fair
333 Avenue over Bull Ck No. 000000027010038	4.2N & 4W JCT 44&47	1965	Slab	134 ft	36	Fair
281 Street over Bull Creek No. 000000027017120	6N & 0.7E Dallas	2001	Tee Beam	50 ft	36	Good
279 Street over Ck No. 000000027019100	3.1W & 2S JCT 44&47	2018	Culvert	21 ft	36	Good
342 Avenue over Ponca Ck No. 000000027100263	4.3S & 2W Burke	2007	Culvert	27 ft	36	Good
342 Avenue over Ck No. 000000027100276	2W & 5.3S Burke	1932	Stringer/Multi-beam or Girder	32 ft	36	Good
347 Avenue over Ck No. 000000027150296	7.6S & 3E Burke	1988	Culvert	32 ft	36	Fair
349 Avenue over South Fork Whetstone Ck No. 000000027168174	2.4S & 1.1E of Lucas	1997	Culvert	25 ft	36	Fair
298 Street over Willow Ck No. 000000027198290	9.1W Bonesteel	1930	Stringer/Multi-beam or Girder	47 ft	36	Fair
352 Avenue over Willow Ck No. 000000027200322	5.2S & 2E Herrick	1956	Stringer/Multi-beam or Girder	208 ft	36	Poor
352 Avenue over Squaw Ck No. 000000027202338	2E & 6.8S Herrick	1956	Stringer/Multi-beam or Girder	138 ft	36	Fair
355 Avenue over Ponca Ck No. 000000027230331	6W & 4.1S Bonesteel	1991	Tee Beam	40 ft	36	Fair
366 Avenue over North Scalp Ck No. 000000027342262	4.2E & 2.8N Bonesteel	2015	Culvert	22 ft	36	Poor
Lodge Road over Randall Ck No. 000000027461331	13.1E & 0.1S Fairfax	1984	Tee Beam	40 ft	36	Fair
Randall Road over Randall Ck No. 000000027476330	14.6E Fairfax	1992	Culvert	29 ft	36	Good
Fort Randall Road over Randall Ck No. 000000027494316	0.6S Ft Randall Dam	1985	Culvert	30 ft	36	Fair
295 Street over Ponca Ck No. 000000027095260	4S & 2.5W Burke	1982	Tee Beam	50 ft	35	Fair
W. Whetstone Road over North Fork Whetstone Ck No. 000000027272200	1.8W & 9N Bonesteel	1982	Channel Beam	35 ft	32	Fair
359 Avenue over Whetstone Ck No. 000000027275227	1.5W & 6.3N Bonesteel	2003	Slab	128 ft	30	Good
371 Avenue over South Scalp Ck No. 000000027387298	4.2N US 18	1977	Tee Beam	40 ft	23	Fair
371 Avenue over South Scalp Ck No. 000000027388292	5N US HWY 18	1977	Tee Beam	40 ft	23	Fair
358 Avenue over North Fork Whetstone Ck No. 000000027261187	10.3N & 3.9 W Bonesteel	2001	Tee Beam	40 ft	20	Good
335 Ave over Creek No. 000000027030252	6.2S & 2W Gregory	2004	Culvert	22 ft	16	Fair
335 Avenue over Ck No. 000000027030081	2W & 0.1S JCT 44&47	2023	Culvert	28 ft	15	Fair
355 Ave over Squaw Ck No. 000000027230339	5.0E & 6.9S Herrick	2005	Culvert	24 ft	12	Fair
297 Street over Ck No. 000000027169280	1S & 0.1W Herrick	1920	Culvert	40 ft	10	Poor
350 Avenue over Coon Ck No. 000000027180190	3N & 6E Burke	1949	Stringer/Multi-beam or Girder	201 ft	10	Fair

Structure types in Gregory County

Culvert	16	31.4%
Slab	13	25.5%
Stringer/Multi-beam or Girder	11	21.6%
Tee Beam	8	15.7%
Channel Beam	2	3.9%
Box Beam or Girders - Multiple	1	2.0%