US Bridges

10 Mile Road over Mexican Ck

PoorPosted for load

Haakon County, South Dakota · 7.4W & 10N Philip · Structure no. 000000028096390

Built
1950
75 years old
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
24 ft
1 main span
Daily traffic
58
2022 count
Owner
County
County Highway Agency

About this bridge

10 Mile Road over Mexican Ck is a wood or timber stringer/multi-beam or girder carrying 10 Mile Road over Mexican Ck in Haakon County, South Dakota. It was built in 1950, so it is 75 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 58 vehicles a day, roughly 2% of them trucks, projected to reach 58 by 2032. The structure is 24 ft (7.4 m) long and 24 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Carries10 Mile Road
CrossesMexican Ck
Location7.4W & 10N Philip
RouteCounty Highway 0
Coordinates44.18299, -101.81483
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating16.2 US tons
Inventory rating11.1 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length24 ft (7.4 m)
Longest span22 ft (6.7 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58 (2022)
Projected traffic58 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$120,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 10 Mile Road over Mexican Ck built?

It was built in 1950, making it 75 years old in 2025.

What condition is 10 Mile Road over Mexican Ck in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does 10 Mile Road over Mexican Ck carry?

About 58 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 10 Mile Road over Mexican Ck?

The structure is 24 ft (7.4 m) long with a longest span of 22 ft (6.7 m) and a deck 24 ft wide.

Who owns 10 Mile Road over Mexican Ck?

It is owned by the County Highway Agency.