T.H. 23 / SOUTH SARATOGA STREET REDUCED CONFLICT INTERSECTION AND

PEDESTRIAN OVERPASS PROJECT

PROJECT HEARING

October 14, 2014City Council

PresentersGlenn Olson, Director of Public Works/City Engineer

Ben Martig, City Administrator

Interregional Corridor Goals

IRC Goals› Maintain safe, timely,

and efficient transportation service between regional centers.

› Enhance economic vitality of the State.

Interregional Corridor Standards

IRC Performance Standards› 1-Hour average travel

speed 55 mph average for TH

23 60 mph average for I-90

› Limited direct access along the corridor. ½ mile full access

spacing in-town 1 mile full access spacing

in rural areas

Interregional Corridor Improvement Strategies

Reduce number of traffic signals

Consolidate access points

Add passing opportunities

Encourage development of local traffic alternative routes.

As part of the overall CIMS initiative and consistent with the Minnesota GO Vision, MnDOT provided $30 million through a competitive solicitation in 2013 to fund trunk highway projects that improve quality of life, environmental health or economic competitiveness.

CIMS Award $3,500,000 Total Project Cost $5,697,356 Year of Construction 2015 45 applications 1 of 10

funded $100 million requested $30 million

funded

Corridor Investment Management Study (CIMS) GrantT.H. 23 / Saratoga Street

Alternate Intersection Designs Reduced speed limits Signalized Intersection Roundabout Vehicle overpass

› with exit lanes› Without exit lanes

Alternate Pedestrian Bridge & Sidewalk Design

Pedestrian underpass Bridge location alternates

T.H. 23 / Saratoga StreetReduced Conflict Intersection and Pedestrian Overpass(Revised Layout)

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Improved safety—Studies show a 70 percent reduction in fatalities and a 42 percent reduction in injury crashes where RCIs are used.

A typical four-lane divided highway intersection has 42 possible vehicle conflict points. RCI's reduce conflict points to as few as 18.

Reduced Conflict Intersection (RCI)Increasing safety; decreasing T-Bone (right angle) crashes

Where in Minnesota are RCIs located?•County Rd. 24, Willmar•Hwy 169 and County Rd. 3, Belle Plaine•Hwy 36 and Keats Avenue, Lake Elmo•Hwy 10 and County Rd. 8, Becker•Hwy 169 and 173rd St., Jordan

MnDOT also plans to build additional RCIs in the next five years in Cologne, Cannon Falls, Vermillion, Zumbrota, Cotton, Ham Lake, Ramsey and Oakdale.

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2014

T.H. 23 / Saratoga StreetReduced Conflict Intersection and Pedestrian Overpass

Pedestrian Safety

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September 2014, 7:30 a.m.

September 2014, 7:35 a.m.

Pedestrian Safety continues to be heavy on Saratoga Street.

Future residential growth south of Highway 23 is expected to increase pedestrian crossings and traffic along Saratoga.

Pedestrian Images (May 2014)

Manufactured Home District Alternate Access

Western CommunityAction

Broadmoor Valley

Pedestrian Friendly Crossing & Pedestrian Bridge Access

Pedestrian Overpass Project ExampleCity of Bemidji, Minnesota (population 13,528)

The accident involved a cross over highway 23.

This movement will be eliminated in the new intersection design.

Accident on Hwy 23 and Saratoga Street on Monday, June 4, 2014

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BACKGROUND Current posted speed

55mph Last Hwy23 Marshall

corridor speed study was 2000.

School zone speed study 2005-2006.

Council resolution 2014 requesting study initiated the review.

Study included Hwy 23 corridor through Marshall.

FINDINGS The posted speeds are

accurate and no change is recommended.

The 85th percentile speed is the benchmark for safest & appropriate speed.

85th percentile speed range from 59-66mph.

55 mph posted speed shows acknowledgement of sustained crash locations in designating the official speed limits.

MnDOT Speed Study September 4, 2014

The accident involved a cross over highway 23.

This movement will be eliminated in the new intersection design.

Accident on Hwy 23 and Saratoga Street on Wednesday, October 8, 2014

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Funding Source Funding Amount ($)

MnDOT Corridor Investment Management Study (CIMS) Grant

$3,500,000

MnDOT Municipal State Aid System (MSAS) Funds $1,220,000

City – G.O. 2015A Bond (par amount) $1,265,000

Total $5,985,000

Final Financing

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G.O. 2015A Bond Summary Financing

$1,710,000 General Obligation Bonds

15-year term