big sky bridge decks - virtual open house - slides - may ... · built in 1952. bridge deck is being...
TRANSCRIPT
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19164
64191
Gallatin River
West Fork Gallatin River
South Fork Galla
tin River
Dudley Creek Road
3.
2.
1.Little
Coyote Road
Lone Mountain Trail
Lone Mountain Trail
Big Sky Town Center
VIRTUALOPEN HOUSE
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BIG SKY BRIDGE DECKS PROJECT OVERVIEW
LITTLE COYOTE ROAD BRIDGE HIGHWAY 191 BRIDGE LONE MOUNTAIN TRAIL BRIDGE
The bridge decks have undergone regular maintenance for years and can no longer be patched for interim fixes.
The Montana Department of Transportation and Dick Anderson Construction will improve three bridge structures.
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19164
64191
Gallatin RiverWest Fork Gallatin River
South Fork Galla
tin River
Dudley Creek Road
3.
2.
1.Little
Coyote Road
Lone Mountain Trail
Lone Mountain Trail
Big Sky Town Center
PROJECT KEY
2. Lone Mountain Trail Bridge1. Little Coyote Road Bridge
3. Highway 191 Bridge
BIG SKY BRIDGE DECKS PROJECT MAP
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ABOUT BRIDGE DECKS
A bridge deck is the surface that vehicles drive on when on a bridge.
Decks have multiple layers.
Bridges have unique needs and cannot be treated the same way as roads.
ASPHALT SURFACE
DECK PLATE
CROSSBEAM
RIBGIRDER
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Built in 1979. Full bridge deck replacement needed.
Work on one side of bridge at a time. Minimal delays.
1 2 3
MT 64 - LITTLE COYOTE ROAD BRIDGE
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MT 64 / US 191- LONE MOUNTAIN BRIDGE
Built in 1972. Bridge deck is being repaired.
Repairs involve milling, filling in underlying layers, and paving.
1 2 3Work on one side of bridge at a time. 15-minute delays anticipated.
4
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US HIGHWAY 191 BRIDGE
Built in 1952. Bridge deck is being repaired.
Repairs involve milling, filling in underlying layers, and paving.
1 2Work on one side of bridge at a time. Delays up to 15-minutes during rush hour.
43
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PROJECT TIMELINE
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TRAVELER INFORMATION
Single-lane traffic with a traffic signal in-place.
24/7 traffic control.
Work hours: Monday –Friday during daylight hours.
Delays up to 15 minutes at each bridge.
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WIDE LOADS AND DETOURS
Wide loads restricted: Widths larger than 11 feet should take an alternate route.
No designated detour.
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VISION ZERO
Vision Zero: Goal of zero deaths and zero serious injuries on Montana roadways.
Watch for the “cone zone.” Slow down, pay attention, and be extra careful when in the work zone.
Fines double in work zones.
VISION ZERO
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