9830-009P - LOWER IGLOO CREEK INSPECTION REPORT 2021.pdf
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- Attached to
- AK NPS DENA 10(49), Polychrome Area Improvements
- Solicitation number
- 69056722R000015
About this file
This bridge inspection report documents the routine biennial inspection of the Lower Igloo Creek Bridge located in Denali National Park and Preserve in Alaska. Key details include the bridge's inventory and operating load ratings, description of structural materials and components, condition ratings for substructure and superstructure elements, underwater inspection frequency, and identification of minor deficiencies such as deck cracking and endwall undermining requiring further monitoring or repair. The report includes detailed photos documenting inspection findings.
The related federal contract opportunity is a solicitation issued by the Federal Highway Administration seeking proposals for improvements to parking areas, trails and other visitor facilities in the Polychrome Area of Denali National Park. Offerors are advised to submit proposals by the specified due date to be considered for award of a firm-fixed-price contract with an estimated value of $500,000 to $1,000,000 to be completed within one year.
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BRIDGE INSPECTION REPORT
LOWER IGLOO CREEK BRIDGE
DENALI PARK ROAD OVER IGLOO CREEK
DENALI NATIONAL PARK & PRESERVE
LOOKING EAST TOWARD DENALI VISITOR CENTER
STRUCTURE NO. 9830-009P
INSPECTION TYPE: ROUTINE
INSPECTION DATE: 6/21/2021
SOUTH (DOWNSTREAM) PROFILE
Report prepared by:
Federal Highway Administration Federal Lands Bridge Office Bridge Inspection and Management Program 21400 Ridgetop Circle Sterling, Virginia 20166 https://bridge.flhd.fhwa.dot.gov
STRUCTURE LOAD RATING STRUCTURE NO. 9830-009P
LOWER IGLOO CREEK BRIDGE INSPECTION DATE: 06/20/2021
TRUCK TYPE
INVENTORY RATING (NORMAL TRAFFIC) OPERATING RATING (MAXIMUM LOAD)
TONS METRIC TONS TONS METRIC TONS
H 38 34 64 58
HS 51 46 85 77
TYPE 3 46 42 77 70
TYPE 3S2 73 66 122 111
TYPE 3-3 89 81 148 134
DESIGN LOADING: 3 - HS 15
X CAPACITY MEETS OR EXCEEDS DESIGN LOAD
CAPACITY IS LESS THAN DESIGN LOAD
ORIGINAL LOAD RATING CALCULATION APPLICABLE
X ORIGINAL LOAD RATING CALCULATION REVISED
DATE OF LOAD RATING CALCULATION: 05/17/2016
LOAD RATING CONTROLLED BY: SERVICEABILITY (AASHTO 10.57.1)
REMARKS: RATING IS BASED ON DESIGN LOAD OF STRUCTURE.
SEE BRIDGE FILE FOR LOAD RATING CALCULATIONS.
STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 9830-009P
STRUCTURE IDENTIFICATION
(201) PARK: DENALI NATIONAL PARK & PRESERVE
(202) STRUCTURE NAME:..............LOWER IGLOO CREEK BRIDGE
(203) STRUCTURE KIND:............... 1 - BRIDGE
(204) STRUCTURE NUMBER:.........9830-009 P
7 - ALASKA(205) NPS REGION:
(206) ROUTE CODE NUMBER:
(207) ROAD SECTION NO:
(208) NPS ROAD CLASS:............... 1 - PRINCIPAL PARK ROAD
(209) WITHIN NPS BNDRY?:.......... Yes
(210) OPERATING UNIT:.................PARK
(211) PROJECT NO(S):................... UNKNOWN
(212) DRAWING NUMBERS:...........RG1672
(21) MAINTAINED BY:......................66 - NATIONAL PARK SERVICE
(22) OWNER:................................... 66 - NATIONAL PARK SERVICE
(1) STATE:
(2) STATE HWY. AGENCY DIST:
(3) COUNTY CODE:
(4) CITY / PLACE CODE:
(5) INVENTORY ROUTE:
(6) FEATURES INTERSECTED:
(7) FACILITY CARRIED:
(8) STATE STRUCTURE NO:
(9) LOCATION:
(10) INV. RTE. - MIN. VERT. CLR:
(11) MILE POINT:
(27) YEAR BUILT:
(106) YEAR RECONSTRUCTED:
(20) TOLL:
(37) HISTORIC DESIGNATION:
020 - ALASKA
02290 YUKON-KOYUKUK
00000
1 6 1 00000 0
IGLOO CREEK
DENALI PARK ROAD
9830009P0000000
34.26 MILES WEST OF AK ROUTE 3
(MP 237.3) ON DENALI PARK ROAD.
99.99 FT ( 99.99 M)
34.26 (KM PT: 10.44)
3 - ON FREE ROAD
5 - NOT ELIGIBLE
STRUCTURE DESCRIPTION, FOUNDATION, AND DECK TYPE
(43A) MAIN STR. MATERIAL:..........3 - STEEL
(43B) MAIN STR. TYPE:.................. 02 - STRINGER/MULTI-BEAM OR
GIRDER
(45) NO. OF MAIN SPANS:
(48) MAX. SPAN LENGTH:..............45 FT ( 13.7 M)
(49) STRUCTURE LENGTH:........... 70.0 FT ( 21.3 M)
(216A) ABUTMENT #1 FDN:........... 6 - N/A
(216B) ABUTMENT #2 FDN:........... 6 - N/A
(217A) PREDOM. PIER FDN:.......... 4 - PILE BENT
(217B) SECOND. PIER FDN:.......... 4 - PILE BENT
(107) DECK TYPE:.......................... 1 - CONCRETE CAST-IN-PLACE
(44A) APPR. STR. MATERIAL:............ 0 - Other
(44B) APPR. STR. TYPE:.................... 00 - OTHER
(46) NO OF APPROACH SPANS:
(108) WEAR SURFACE/PROTECT SYSTEM:
A) TYPE WEARING SURFACE:.. 1 - MONOLITHIC CONCRETE
(CONCURRENTLY PLACED WITH
STRUCTURAL DECK)
B) TYPE MEMBRANE:................. 0 - NONE
C) TYPE PROTECTION:.............. 0 - NONE
(218) IS SALT USED?.......................... NO
LOAD RATING AND POSTING
(31) DESIGN LOAD:.........................3 - HS 15 (41) LOAD RESTRICTION:.................. A - OPEN
(66) INVENTORY RATING:..............27 METRIC TONS) (70) BRIDGE POSTING:...................... 5 - EQUAL TO OR ABOVE LEGALTONS ( 24.5
LOADS
(64) OPERATING RATING:..............45.1 TONS ( 40.9 METRIC TONS)
INSPECTION DATES
(90) INSPECTION DATE: 06/21/2021 (91) FREQ. OF INSP: 24 MONTHS (92 / 93) CRITICAL FEATURE INSPECTION (CFI):
(219) ADD. STUDIES NEEDED: N - 0 - NONE (A) FRACTURE CRITICAL:.......... N
(220) SPECIAL STUDY TYPE: 5 - SCOUR INSP. EVERY MONTHS - LAST INSP:
(221) SPECIAL STUDY DATE: 09/01/1998 (B) UNDERWATER:..................... N
INSP. EVERY MONTHS - LAST INSP:
(C) SPECIAL INSPECTION:........ N
INSP. EVERY MONTHS - LAST INSP:
STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 9830-009P
GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA
(16) LATITUDE:................................ 63° 36'31.60" (51) CURB TO CURB WIDTH:............ 26.0 FT ( 7.9 M)
(17) LONGITUDE:............................149°35 '05 50" (52) DECK WIDTH:.......................... 30.5 FT ( 9.3 M)
(19) DETOUR LENGTH:.................. 199 MI ( 199 KM) (32) APPR. ROADWAY WIDTH:...... 26.0 FT ( 7.9 M)
(28A) LANES ON STRUCT:.............02 (213) APPR. PAVEMENT WIDTH:... 24.0 FT ( 7.3 M)
(28B) LANES UNDER STRUCT:......00 LEFT SHOULDER:............... 1 0 FT ( 0.3 M)
(42A) SERVICE ON:.........................1 - HIGHWAY RIGHT SHOULDER:.......... 1 0 FT ( 0.3 M)
(42B) SERVICE UNDER:................. 5 - WATERWAY (33) BRIDGE MEDIAN:.................... 0 - NO MEDIAN
(29) AVG DAILY TRAFFIC:..............1300 (34) SKEW ANGLE:......................... 0 °
(30) YEAR OF ADT:......................... 2013 (35) STRUCTURE FLARED:............ 0 - NO FLARE
(114) FUTURE ADT:.........................1560 (47) TOTAL HORIZ. CLEARANCE:.. 24 FT ( 7.3 M)
(115) YEAR OF FUTURE ADT:........2033 (50) SIDEWALKS
(101) PARALLEL STRUCTURE:......N - NO PARALLEL STRUCTURE LEFT:.................................... 2 3 FT ( 0.7 M)
(38) NAVIGATION CONTROL:.........0 - NO NAVIGATION CONTROL ON RIGHT:.................................. 2 3 FT ( 0.7 M)
WATERWAY (BRIDGE PERMIT NOT
REQUIRED)
(39) VERTICAL CLEARANCE:.........0 FT ( 0 M) (214) BRIDGE RAIL TYPE
1 - FULL HEIGHT (NO PARAPET)(40) HORIZ. CLEARANCE:..............0 FT ( 0 M) RAIL CONFIGURATION:
(111) ABUT OR PIER PROT:........... MATERIAL:........................... 3 - CONCRETE/STEEL
LATERAL UNDERCLEARANCE: DESIGN TYPE:..................... 1 - CONTINUOUS RAIL
(55) RIGHT:...............................00 FT ( 0 M) (215) BRIDGE RAIL HEIGHT:.......... 2 08 FT ( 0.63 M)
(56) LEFT:................................ 0 FT ( 0 M) (53) MIN. VRT. CLR. OVER DECK: 99.99 FT ( 99.99 M)
(54) MIN. VRT. UNDRCLRANCE:... .00 FT ( 0 M)
CONDITION AND APPRAISAL DATA, PROPOSED IMPROVEMENTS, AND COST
(58) DECK:....................................... 6 (67) STRUCTURAL EVALUATION:
(59) SUPERSTRUCTURE:...............7 (68) DECK GEOMETRY:
(60) SUBSTRUCTURE:.......... 7 (69) UNDERCLEARANCES:................ N
(61) CHANNEL:................................8 (71) WATERWAY ADEQUACY:
(62) CULVERT:.................................N (72) APPROACH ALIGNMENT:
(222) APPROACHES:...................... 7 (113) SCOUR CRITICAL:.................... 5 - SCOUR WITHIN LIMITS OF
FOOTING OR PILES
(223) RETAINING WALL:.................N (225) PROPOSE OF IMPROVEMENT: 2 - REHAB/RECONSTRUCTION
(36) TRAFFIC SAFETY FEAT: 0 N N N (226) PRIORITY OF IMPROVEMENT: D - MINOR
ADDITIONAL INFORMATION
(230) STRUCTURE HISTORY:
(231) ADDITIONAL CONSIDERATIONS:
CALCIUM CHLORIDE IS USED ON BRIDGE APPROACHES.
(330) ADDITIONAL CONFIGURATION INFORMATION:
SPAN #1 & #3 - LENGTH 12.5', SPAN #2 - LENGTH 45'
Inspector: Jordan Hensley Structure Number: 9830009P0000000
Inpsection Date: 06/21/2021 Facility Carried: DENALI PARK ROAD
Bridge Inspection Report
Pictures
PHOTO 3
Description LOOKING WEST
PHOTO 4
Description NORTH (UPSTREAM) PROFILE
Bridge Inspection Report
Pictures
PHOTO 5
Description GENERAL TOPSIDE VIEW LOOKING WEST
PHOTO 6
Description TYPICAL VIEW OF CURB AND RAILING, UPSTREAM SIDE SHOWN
Bridge Inspection Report
Pictures
PHOTO 7
Description GENERAL VIEW OF DECK JOINT ABOVE EAST PIER
PHOTO 8
Description MINOR SPALLING OF DECK AT JOINT OVER EAST PIER
Bridge Inspection Report
Pictures
PHOTO 9
Description GENERAL VIEW OF DECK JOINT ABOVE WEST PIER
PHOTO 10
Description GENERAL UNDERSIDE VIEW OF SUPERSTRUCTURE, MAIN SPAN LOOKING EAST
Bridge Inspection Report
Pictures
PHOTO 11
Description TYPICAL MINOR CRACKING WITH EFFLORESENCE IN DECK OVERHANG, UPSTREAM SIDE
SHOWN
PHOTO 12
Description TYPICAL VIEW OF FIXED BEARING, BEARING AT WEST PIER SHOWN
Bridge Inspection Report
Pictures
PHOTO 13
Description GENERAL VIEW OF EAST ENDWALL
PHOTO 14
Description UNDERMINING OF APPROXIMATELY 16" AT EAST ENDWALL
Bridge Inspection Report
Pictures
PHOTO 15
Description GENERAL VIEW OF EAST PIER LOOKING EAST
PHOTO 16
Description GENERAL VIEW OF WEST PIER LOOKING WEST
Bridge Inspection Report
Pictures
PHOTO 17
Description GENERAL VIEW OF WEST ENDWALL
PHOTO 18
Description UNDERMINING OF APPROXIMATELY 20" AT WEST ENDWALL
Bridge Inspection Report
Pictures
PHOTO 19
Description TYPICAL SPALLING OF RAIL POST, DOWNSTREAM POST AT WEST ABUTMENT SHOWN
PHOTO 20
Description EAST APPROACH
Bridge Inspection Report
Pictures
PHOTO 21
Description WEST APPROACH
PHOTO 22
Description NORTH (UPSTREAM) CHANNEL
Bridge Inspection Report
Pictures
PHOTO 23
Description SOUTH (DOWNSTREAM) CHANNEL
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