US Bridges

Fairview Road over Angostura Main Canal

Fair

Fall River County, South Dakota · 2.7W & 1.9S Oral · Structure no. 000000024370070

Built
1981
44 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

Fairview Road over Angostura Main Canal is a prestressed concrete tee beam carrying Fairview Road over Angostura Main Canal in Fall River County, South Dakota. It was built in 1981, so it is 44 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 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.

It carries about 25 vehicles a day, roughly 2% of them trucks, projected to reach 25 by 2032. The structure is 32 ft (9.8 m) long and 19 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesFairview Road
CrossesAngostura Main Canal
Location2.7W & 1.9S Oral
RouteCounty Highway 0
CountyFall River County
StateSouth Dakota
Coordinates43.37645, -103.32265
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width19 ft (5.9 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic25 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Fairview Road over Angostura Main Canal built?

It was built in 1981, making it 44 years old in 2025.

What condition is Fairview Road over Angostura Main Canal 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 May 2024.

How much traffic does Fairview Road over Angostura Main Canal carry?

About 25 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Fairview Road over Angostura Main Canal?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m) and a deck 19 ft wide.

Who owns Fairview Road over Angostura Main Canal?

It is owned by the County Highway Agency.