US Bridges

HWY 1416 over Trib. to Box Elder Creek

FairPosted for load

Pennington County, South Dakota · 1.1 E of Box Elder · Structure no. 000000052511280

Built
1924
101 years old, rebuilt 1935
Condition
Fair
inspected July 2023
Type
Slab
Concrete Continuous
Length
50 ft
3 main spans
Daily traffic
1,552
2022 count
Owner
County
County Highway Agency

About this bridge

HWY 1416 over Trib. to Box Elder Creek is a concrete continuous slab carrying HWY 1416 over Trib. to Box Elder Creek in Pennington County, South Dakota. It was built in 1924 and reconstructed in 1935, so it is 101 years old, older than the South Dakota average of 48.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,552 vehicles a day, roughly 14% of them trucks, projected to reach 1,552 by 2034. The structure is 50 ft (15.2 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesHWY 1416
CrossesTrib. to Box Elder Creek
Location1.1 E of Box Elder
RouteCounty Highway 0
Coordinates44.11104, -103.03022
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating20.3 US tons
Inventory rating12.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span17 ft (5.2 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,552 (2022)
Projected traffic1,552 by 2034
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible 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 1924, making it 101 years old in 2025. It was reconstructed in 1935.

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

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

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

About 1,552 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 50 ft (15.2 m) long with a longest span of 17 ft (5.2 m) and a deck 33 ft wide.

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

It is owned by the County Highway Agency.