Presented by: The Oklahoma Department of Transportation, Tetra Tech, - - PowerPoint PPT Presentation

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Presented by: The Oklahoma Department of Transportation, Tetra Tech, - - PowerPoint PPT Presentation

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Presented by: The Oklahoma Department of Transportation, Tetra Tech, CEC, & CC Environmental US-77 Over Washita River and Washita River Overflow & Unnamed Creek Purpose of Meeting Inform the public about the proposed improvements to

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Presented by: The Oklahoma Department of Transportation, Tetra Tech, CEC, & CC Environmental

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Purpose of Meeting

  • Inform the public about the proposed

improvements to US-77 over the Washita River, Washita River Overflow, & Unnamed Creek beginning at SH-29 to just east of Long Avenue in Wynnewood, Garvin County

  • Present the results of the environmental studies
  • Solicit public input for the proposed changes to

US-77 for further consideration

  • Answer questions and address concerns
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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Location Map

N

WYNNEWOOD 35

77 77

29 29

WASHITA RIVER

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Project Purpose & Need

  • Replace one structurally deficient bridge, and

two functionally obsolete (narrow) bridges

  • Improve the efficiency of US-77
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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Presentation Overview

  • Two separate construction projects

EW-163 29 LONG AVE

Washita River

Washita River Bridge Project Washita River Overflow & Unnamed Creek Project

BNSF RAILROAD

Washita River Overflow

77 29

Unnamed Creek

WYNNEWOOD

US-77 IMPROVEMENT PROJECTS

N

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Existing Roadway Conditions

  • 2-lane highway built in 1959
  • Two, 12-ft driving lanes with 8-ft paved

shoulders

  • Speed limit: 65 mph highway with 45 mph

approaching Wynnewood

  • Existing Traffic (2015) 6,900 vehicles per day
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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Project Personnel

OK Department of Transportation Tetra Tech CEC Infrastructure Solutions CC Environmental

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Washita River Bridge Project

  • Design Engineer: CEC Infrastructure Solutions
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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

EW-163 29 77 29

US-77 Over Washita River

L O N G A V E W A S H I T A R I V E R Washita River Overflow Unnamed Creek

WYNNEWOOD

Washita River Bridge Project

N

Begin at SH-29 intersection & proceed east approximately 1 mile

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Existing Conditions

  • Existing Washita River Bridge
  • Built 1959
  • 28-ft wide
  • 610 ft long, 4–100-ft pony trusses & 1–210-ft high

truss

  • Structurally Deficient
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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Proposed Improvements

  • Replace existing truss bridge
  • Bridge will consist of 4–12-ft wide driving lanes and 2–

10-ft wide shoulders

  • 672 ft long new bridge
  • Widen the approach roadway east and west of

the bridge

  • 4–12-ft wide driving lanes
  • 2–10-ft wide shoulders
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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Proposed Improvements

  • Reconstruct on Existing Alignment with

road closed

  • Provides the least construction cost and

minimizes the right-of-way and utility impacts, but with a higher impact to road users.

  • Provide alternate route during construction
  • Posted Detour Route on SH 17A and I-35 is 10

miles long from the west end of bridge to the east end of bridge

  • Road closure letters sent to property owners in

2012, no comments were received

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Posted Detour Route

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Schedule of Improvements

  • Project Duration:
  • Initial Estimate =

10 months (300 days)

  • Time may be reduced to 9 months (270 days) or

less with construction performance incentives/disincentives

  • Right-of-Way/Utilities: underway
  • Begin Construction:

2018

  • Total Cost Estimate:

$9.13 million

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Washita River Overflow & Unnamed Creek

  • Design Engineer: Tetra Tech

Unnamed Creek Washita River Overflow

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

EW-163

WYNNEWOOD

29 77 29

US-77 Over Washita River Overflow & Unnamed Tributary

L O N G A V E WASHITA RIVER Washita River Overflow Unnamed Creek

Washita River Overflow & Unnamed Creek Project

N

Begin at river bridge project, extend east ~1 mile to just past Long Ave.

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Existing Conditions

  • Bridges:
  • Washita River Overflow Bridge
  • Built 1932
  • 30-ft wide
  • 158 ft long, 7 –22.5-ft concrete slab spans
  • Unnamed Creek Bridge
  • Built 1932
  • 28-ft wide
  • 113 ft long, 5 –22.5-ft concrete slab spans
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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Proposed Improvements

  • Roadway:
  • Reconstruction of existing pavement to

accommodate future traffic (2035) 9,600 vehicles/day

  • Current and future traffic warrants 4 lanes
  • 4-lane open section
  • 4–12-ft wide driving lanes with 2–10-ft wide shoulders
  • Transition to 2-lane open section in Wynnewood
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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Proposed Improvements

4-Lane Open Section

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Proposed Improvements

  • Bridges:
  • Washita River Overflow
  • 3–12-ft x 4-ft Reinforced Concrete Boxes Extended to

the Clear Zone

  • Unnamed Creek
  • 3–14-ft x 7-ft Reinforced Concrete Boxes Extended to

the Clear Zone

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Proposed Improvements

  • Construction Phase
  • Maintain one lane of traffic in each direction throughout

construction

  • Offset alignment to the south to:
  • Facilitate removal of existing bridges
  • Construct new structures
  • Avoid ballpark impacts
  • Provide temporary access drives
  • Residential
  • Commercial
  • Field Entrances
  • Minimize impact to properties and owners
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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Schedule of Improvements

  • Schedule as identified in the ODOT 8-Year

Construction Work Plan

  • Project Duration:

8 months

  • Right-of-Way/Utilities:

2017

  • Begin Construction:

2020

  • Total Cost Estimate:

$6.27 million

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Environmental Review

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Environmental Process

  • Issues Considered, Studied, & Evaluated
  • Right-of-Way Impacts
  • Wetland Impacts
  • Stream Impacts
  • Floodplain Impacts
  • Farmland Impacts
  • Threatened &

Endangered Species

  • Tribal Concerns
  • Cultural Issues
  • Archeological Sites
  • Hazardous Waste

Sites

  • Park Impacts
  • Noise Impacts
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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Environmental Findings

  • Right-of-Way Impacts
  • Some right-of-way required
  • No residential or commercial displacements

anticipated

  • Stream & Wetland Impacts
  • Impacts to waters & wetlands anticipated
  • Requires Army Corps of Engineers review
  • Cultural Issues & Archeological Sites
  • No historic properties affected
  • Off-project avoidance plan notes
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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Environmental Findings

  • Hazardous Waste Sites
  • Leaking underground storage tank sites near

southwest corner of SH-29/US-77 junction

  • Fueling station at US-77 & N. Jarret
  • Contamination possible, but not expected to

affect construction

  • Park Impacts
  • Ballpark complex should not be affected
  • Access will remain open during construction
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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Environmental Findings

  • Noise Study
  • Noise study completed in accordance with ODOT

noise policy (July 13, 2011). Utilized FHWA Traffic Noise Model in predicting existing and future noise levels.

  • Model inputs included traffic data, roadway

geometry, and receiver site locations.

  • Receiver sites included 4 residences, 7

commercial properties, and 2 baseball fields.

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Environmental Findings

  • Noise Impacts
  • Based on the proposed project & future traffic, no

residences or baseball fields would approach or meet 67dB(A).

  • Future noise levels ranged from +0.6 to +6.3

dB(A) over the existing condition.

  • No receivers are projected to experience a

substantial increase in sound levels (15dB).

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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Summary

  • Two separate projects
  • Washita River Bridge
  • Washita River Overflow & Unnamed Creek

Bridges

  • Proposed Improvements
  • Replace all three bridges with new structures
  • Improve the roadway
  • 4-12 ft wide driving lanes with 2-10 ft wide shoulders
  • Transition to 2 lanes in town
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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Next Steps

  • Receive comments from public
  • Complete/update environmental documents
  • Complete/update design plans
  • Begin/complete right-of-way acquisition & utility

relocations

  • Washita River Bridge Project:

In progress

  • Washita River Overflow & Unnamed Creek Project: 2017
  • Construct projects
  • Washita River Bridge Project:

2017

  • Washita River Overflow & Unnamed Creek Project: 2020
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US-77 Over Washita River and Washita River Overflow & Unnamed Creek

Question & Comments

  • More information is available online at

www.odot.org/publicmeeting

  • Comments may be provided as following:
  • Leave your comment form here tonight
  • Download and fill out form online
  • Mail forms to ODOT:

Oklahoma Department of Transportation Environmental Programs Division 200 NE 21st Street Oklahoma City, OK 73105

  • Email comments to:
  • dot-environment@odot.org
  • Comments due by December 18, 2015