US Bridges

HWY 1416 over Trib. to Box Elder Creek

Good

Pennington County, South Dakota · 6.7 E. New Underwood · Structure no. 000000052677290

Built
2013
12 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
156
2022 count
Owner
County
County Highway Agency

About this bridge

HWY 1416 over Trib. to Box Elder Creek is a concrete culvert carrying HWY 1416 over Trib. to Box Elder Creek in Pennington County, South Dakota. It was built in 2013, so it is 12 years old, younger than the South Dakota average of 48.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 156 vehicles a day, roughly 14% of them trucks, projected to reach 156 by 2032. The structure is 25 ft (7.5 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesHWY 1416
CrossesTrib. to Box Elder Creek
Location6.7 E. New Underwood
RouteCounty Highway 0
Coordinates44.09624, -102.69336
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating58.8 US tons
Inventory rating45.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length25 ft (7.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic156 (2022)
Projected traffic156 by 2032
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY 1416 over Trib. to Box Elder Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is HWY 1416 over Trib. to Box Elder Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does HWY 1416 over Trib. to Box Elder Creek carry?

About 156 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is HWY 1416 over Trib. to Box Elder Creek?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m).

Who owns HWY 1416 over Trib. to Box Elder Creek?

It is owned by the County Highway Agency.