Transportation Infrastructure Asset Management

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1 2015 NW Region TTAP& BIA Symposium Transportation Infrastructure Asset Management March, 2015 Happy Longfellow, PE (206)

2 ASSET MANAGEMENT OVERVIEW What? Why? How? Inventory Identify deficiencies & needs Develop a strategy to improve Take action Record and evaluate the results Repeat!

3 TRANSPORTATION ASSETS Pavements Signs Sidewalks Guardrails Drainage (culverts) Bridges

4 PAVEMENTS

5 PAVEMENT CONDITION VS. PAVEMENT AGE

6 RUTTING Causes Movement of subgrade Inadequate compaction Inadequate asphalt mix design Studded tires

7 PROGRESSIVE DETERIORATION - CRACKING Once cracks form, water enters the crack. Water is then able to penetrate the base causing the limestone to swell. This destroys the strength and load bearing capabilities of the base and eventually the asphalt. Alligator cracking begins to happen once the base becomes unstable and ultimately potholes will form.

8 TRANSVERSE CRACKING Causes Poor foundation Thin surfacing Freezing and thawing Heavy vehicles

9 LONGITUDINAL CRACKING

10 BLOCK CRACKING

11 ALLIGATOR CRACKING

12 RAVELING

13 POLISHING

14 FLUSHING/BLEEDING

15 PATCHING

16 POTHOLING

17 PAVEMENT MANAGEMENT SYSTEMS 1. a system to regularly collect highway condition data; 2. a computer database to sort and store the collected data; 3. an analysis program to evaluate repair or preservation strategies and suggest costeffective projects to maintain highway conditions.

18 PAVEMENT CONDITION 10, 100, or Good 1, 10, or Poor

19 NEEDS WHAT DO YOU HAVE? IN WHAT CONDITION? Road inventory (BIA IRR) Pavement rating (BIA IRR) - Road dimensions lane width, shoulder width, surface type, year last maintained - Road conditions pavement, subgrade, drainage, PASER - Traffic counts (ADT)

20 ASSET MANAGEMENT SOFTWARE CHOICES Roadsoft(Michigan TTAP) StreetSaver(Metropolitan Transportation Commission from San Francisco Bay Area) MicroPAVER(US Army Corps of Engineers, APWA) PCI ASTM Standard D iworq(private) RIFDS(BIA planning to develop, coming soon???)

21 ELECTRONIC RATING SYSTEMS Many vendors Pros: highly precise equipment and data Cons : high cost, vendor driven

22 VISUAL RATING SYSTEMS Many vendors and agency programs PASER, BIA, others Pros inexpensive, owner driven Cons judgment based

23 METHODS FOR MAINTENANCE AND REPAIR Preventative maintenance crack seal, fog seal Rehabilitation chip seal, seal coat, thin overlays Reconstruction structural overlay to full depth reconstruction

24 CRACK SEALING/FOG SEAL

25 SLURRY SEALING / SEAL COAT

26 CHIP SEAL

27 MILL AND OVERLAY

28 DEVELOP STRATEGIES The two easiest strategies are to do nothing and to remedy everything. Evaluating the outcomes of each of these remedies will set the bookends for evaluating How to run remedy scenarios Use all remedies and let program optimize 10- year plan Use budget as constraints Use prevent maintenance only (cheapest) Use only rehabilitation and reconstruction (most expensive) Blend and tweak as appropriate to optimize for your network

29 EXAMPLE CURRENT PAVEMENT CONDITION (TULALIP TRIBES OWNED ROADS) FAIR PAVEMENT 11% POOR PAVEMENT 4% FAILED PAVEMENT 0.1% EXCELLENT PAVEMENT 3% GOOD PAVEMENT 82% Tribe/BIA road network, 85 miles, primarily 2-lane

30 NO ACTION PAVEMENT CONDITION AFTER 10 YEARS NO ACTION (TULALIP TRIBES OWNED ROADS) POOR PAVEMENT 56% FAILED PAVEMENT 7% GOOD PAVEMENT 4% FAIR PAVEMENT 34% No Action

31 MAINTENANCE STRATEGY AT 500K PAVEMENT CONDITION AFTER 10 YEARS (TULALIP TRIBES OWNED ROADS) FAIR PAVEMENT 8% POOR PAVEMENT 3% EXCELLENT PAVEMENT 1% GOOD PAVEMENT 88% Maintenance Strategy at $500K per year (Slurry seals and crack sealing)

32 MAINTENANCE STRATEGY AT 1.5M PAVEMENT CONDITION AFTER 10 YEARS (TULALIP TRIBES & NON-TULALIP TRIBES OWNED ROADS) GOOD PAVEMENT 64% FAIR PAVEMENT 6% POOR PAVEMENT 1% EXCELLENT PAVEMENT 29% Maintenance Strategy at $1.5M per year (Overlays, Slurry seals and crack sealing)

33 REMAINING SERVICE LIFE (RSL)

34 IMPLEMENTATION Select projects Should be done based on a review of the roads that are ready for a specific remedy (example). So, you may want to make selection based on other factors such as ADT, economic development, utility work, complaints, more detailed field review, etc.

35 IMPLEMENTATION Engineering and construction Look at unique situations and opportunities for the most cost effective remedy, i.e. Recycled Asphalt, Warm Mix Asphalt, etc. Check with local, state, and county DOTsand public works departments.

36 IMPLEMENTATION Recheck costs Engineering, construction bid documents (don t forget to include things such as sign replacements, guardrail, culvert, and other inventory items in the project areas that you can refine the inventory data and evaluate for replacement or repair as part of pavement project), construction, and construction management.

37 RECORD AND REPEAT! Record results and update inventory! BIA IRR Pavement management system Don t forget! Update remedy costs in PMS Update projected results Report to Council! Repeat annually!

38 SIGNS

39 REGULATORY SIGNS EXAMPLES Stop Sign and All Way Sign Speed Limit Sign

40 WARNING SIGNS EXAMPLES Advance Pedestrian Crossing Sign and Diagonal Downward Arrow Plaque

41 STREET SIGNS EXAMPLES Street Signs

42 CUSTOM SIGN EXAMPLE

43 SIGN INVENTORY DATA LOCATION DESCRIPTION MUTCD CODE BOTTOM HEIGHT SIZE REFLECTIVITY SUPPORT LENGTH, SIZE, TYPE, AND BASE CONDITION OF SIGNS AND SUPPORTS

44 EXAMPLE SIGN INVENTORY SIGN TYPE TOTAL SIGNS NEED MAINTENANCE IN GOOD CONDITION REGULATORY SIGNS WARNING SIGNS STREET SIGNS CUSTOM SIGNS TOTAL

45 GUARDRAILS (FEATURES TO INVENTORY) BEAM TYPE RAIL HEIGHT APPROACH AND DEPARTURE ATTENUATOR TYPE POST SPACING AND HEIGHT GROUND CLEARANCE LATERAL OFFSET LENGTH PURPOSE CONDITION

46 GUARDRAIL INVENTORY TOTAL LENGTH OF GUARDRAIL IN TULALIP TRIBES: 7862 LENGTH OF TRIBAL OWNED GUARDRAIL: 5238 LENGTH OF NON-TRIBAL OWNED GAURDRAIL: 2624

47 SIDEWALK (FEATURES TO INVENTORY) LOCATION LENGTH WIDTH THICKNESS CONDITION CURB RAMPS ADA COMPLIANCE ON SIDEWALK AND SIDEWALK CURB RAMPS

48 SIDEWALK INVENTORY EXAMPLES

49 BRIDGES

50 BRIDGE

51 CULVERT

52 Questions? Happy Longfellow, PE (206)

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