gdot maintenance overview eric c. pitts, p.e. state maintenance engineer june 28, 2013

GDOT

Maintenance OverviewEric C. Pitts, P.E.

State Maintenance EngineerJune 28, 2013

Current Roadways Maintained

•18,100 centerline miles on the State Route System•47,648 Lane Miles

1955

South from 14th Street in 1953South from 14th Street in 1953

South from 14th Street in 2004South from 14th Street in 2004

Identifying Maintenance Needs

• Pavement Condition Evaluation System (PACES)

• Daytime Inspection• Night Inspection• Drainage Inspection• Bridge Inspection• Visual Observation and Reported deficiency

Pavements - Target Condition Levels

•Maintain interstates with 50,000 or greater ADT at a PACES Rating of 80 or more•Maintain all other interstates at a PACES Rating of 75 or more•Maintain multi-lane non interstate routes with an ADT of 25,000 or greater at a PACES Rating of 75 or more•Maintain other routes at a PACES Rating of 70 or more

Life Cycle of a Road

DesignConstructionInitial DeteriorationVisible DeteriorationDisintegration and Failure

Treatment for Initial Deterioration

Visible Deterioration

Treatment for Visual Deterioration

Disintegration and Failure

Treatment for Disintegration and Failure

Target Condition Levels

• Guardrail repairs Interstate repairs to be made within 2 days of notification, divided highways repairs within 5 days and others within 1 month. •Drainage Maintenance 75% of drainage structures are to be maintained with an inspection score of 70 or higher.•Mowing – Interstates mowed 3 times yearly, non – interstates mowed 2 times yearly (all mowable areas)

Guardrail Repair

Bridges - Target Condition Levels

•Maintain bridges such that they can carry all legal loads•Maintain bridges such that the decks are in fair condition, or better

Bridge Maintenance