US Bridges

Stc 3851;HEXON RD over Mcconnell Island Ditch

Fair

Canyon County, Idaho · 2.3 W. 0.2 S. Parma · Structure no. 000000000027417

Built
1993
32 years old
Condition
Fair
inspected November 2024
Type
Frame
Concrete
Length
26 ft
1 main span
Daily traffic
280
2023 count
Owner
Local
Other Local Agency

About this bridge

Stc 3851;HEXON RD over Mcconnell Island Ditch is a concrete frame carrying Stc 3851;HEXON RD over Mcconnell Island Ditch in Canyon County, Idaho. It was built in 1993, so it is 32 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 280 vehicles a day, projected to reach 420 by 2042. The structure is 26 ft (7.9 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesStc 3851;HEXON RD
CrossesMcconnell Island Ditch
Location2.3 W. 0.2 S. Parma
RouteCounty Highway 3851
CountyCanyon County
StateIdaho
Coordinates43.7831, -116.98737
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic280 (2023)
Projected traffic420 by 2042
Trucks0%
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

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 3851;HEXON RD over Mcconnell Island Ditch built?

It was built in 1993, making it 32 years old in 2025.

What condition is Stc 3851;HEXON RD over Mcconnell Island Ditch 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 November 2024.

How much traffic does Stc 3851;HEXON RD over Mcconnell Island Ditch carry?

About 280 vehicles per day (2023 count).

How long is Stc 3851;HEXON RD over Mcconnell Island Ditch?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 32 ft wide.

Who owns Stc 3851;HEXON RD over Mcconnell Island Ditch?

It is owned by the Other Local Agency.