9830-010P - UPPER IGLOO CREEK - INSPECTION REPORT 2021.pdf
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- AK NPS DENA 10(49), Polychrome Area Improvements
- Solicitation number
- 69056722R000015
About this file
This document contains a bridge inspection report for the Upper Igloo Creek Bridge located in Denali National Park and Preserve in Alaska. The report provides details of the routine inspection conducted on June 21, 2021, including structure inventory and appraisal data, photographs documenting the condition of various bridge components, and a description of the structure. The single-span steel stringer bridge was built in 1956, carries the Denali Park Road over Igloo Creek, and has a deck width of 28 feet. The inspection found the deck and superstructure to be in fair condition while the substructure was rated as satisfactory. Notable defects include peeling paint and rust on the steel railings and piles, as well as spalling of the deck overhang and erosion around the abutments. The report recommends rehabilitation or reconstruction of the bridge.
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BRIDGE INSPECTION REPORT
UPPER IGLOO CREEK BRIDGE
DENALI PARK ROAD OVER IGLOO CREEK
DENALI NATIONAL PARK & PRESERVE
LOOKING EAST TOWARD DENALI VISITOR CENTER
STRUCTURE NO. 9830-010P
INSPECTION TYPE: ROUTINE
INSPECTION DATE: 6/21/2021
SOUTH (UPSTREAM) 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. 9830-010P
UPPER 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 26 24 44 40
HS 38 34 64 58
TYPE 3 33 30 56 51
TYPE 3S2 53 48 89 81
TYPE 3-3 64 58 106 96
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: 05/02/2016
LOAD RATING CONTROLLED BY: Moment
REMARKS: RATING IS BASED ON DESIGN LOAD OF STRUCTURE.
SEE BRIDGE FILE FOR LOAD RATING CALCULATIONS.
STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 9830-010P
STRUCTURE IDENTIFICATION
(201) PARK: DENALI NATIONAL PARK & PRESERVE
(202) STRUCTURE NAME:..............UPPER IGLOO CREEK BRIDGE
(203) STRUCTURE KIND:............... 1 - BRIDGE
(204) STRUCTURE NUMBER:.........9830-010 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:
(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
9830010P0000000
37.18 MILES WEST OF AK ROUTE 3
(MP 237.3) ON DENALI PARK ROAD.
99.99 FT ( 99.99 M)
37.18 (KM PT: 11.33)
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:..............40 FT ( 12.2 M)
(49) STRUCTURE LENGTH:........... 43.0 FT ( 13.1 M)
(216A) ABUTMENT #1 FDN:........... 4 - PILE BENT
(216B) ABUTMENT #2 FDN:........... 4 - PILE BENT
(217A) PREDOM. PIER FDN:.......... 6 - N/A
(217B) SECOND. PIER FDN:.......... 6 - N/A
(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. 9830-010P
GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA
(16) LATITUDE:................................ 63° 34'25 30" (51) CURB TO CURB WIDTH:............ 24.0 FT ( 7.3 M)
(17) LONGITUDE:............................149°37 '50.10" (52) DECK WIDTH:.......................... 28.0 FT ( 8.5 M)
(19) DETOUR LENGTH:.................. 199 MI ( 199 KM) (32) APPR. ROADWAY WIDTH:...... 30.0 FT ( 9.1 M)
(28A) LANES ON STRUCT:.............02 (213) APPR. PAVEMENT WIDTH:... 24.0 FT ( 7.3 M)
(28B) LANES UNDER STRUCT:......00 LEFT SHOULDER:............... 3 0 FT ( 0.9 M)
(42A) SERVICE ON:.........................1 - HIGHWAY RIGHT SHOULDER:.......... 3 0 FT ( 0.9 M)
(42B) SERVICE UNDER:................. 5 - WATERWAY (33) BRIDGE MEDIAN:.................... 0 - NO MEDIAN
(29) AVG DAILY TRAFFIC:..............1300 (34) SKEW ANGLE:......................... 25 °
(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 33 FT ( 0.71 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:.......... 6 (69) UNDERCLEARANCES:................ N
(61) CHANNEL:................................7 (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:
1988-EXPOSED PORTIONS OF STEEL PILES PAINTED.
(231) ADDITIONAL CONSIDERATIONS:
CALCIUM CHLORIDE IS USED ON BRIDGE APPROACHES.
(330) ADDITIONAL CONFIGURATION INFORMATION:
Span #1 - Length 39.7'; Type 302 (Steel Beams) 4-each
Inspector: Jordan Hensley Structure Number: 9830010P0000000
Inpsection Date: 06/21/2021 Facility Carried: DENALI PARK ROAD
Bridge Inspection Report
Pictures
PHOTO 3
Description LOOKING WEST
PHOTO 4
Description NORTH (DOWNSTREAM) PROFILE
Bridge Inspection Report
Pictures
PHOTO 5
Description GENERAL TOPSIDE VIEW LOOKING WEST
PHOTO 6
Description TYPICAL VIEW OF BRIDGE CURB AND RAILING, UPSTREAM SIDE SHOWN
Bridge Inspection Report
Pictures
PHOTO 7
Description TYPICAL PEELING OF PAINT AND RUSTING OF STEEL RAIL, DOWNSTREAM RAIL SHOWN
PHOTO 8
Description GENERAL UNDERSIDE VIEW OF SUPERSTRUCTURE, LOOKING EAST
Bridge Inspection Report
Pictures
PHOTO 9
Description SPALLING OF DECK OVERHANG ON UPSTREAM SIDE OF EAST ABUTMENT
PHOTO 10
Description TYPICAL BEARING ARRANGEMENT, UPSTREAM BEARING AT EAST ABUTMENT SHOWN
Bridge Inspection Report
Pictures
PHOTO 11
Description GENERAL VIEW OF EAST ABUTMENT
PHOTO 12
Description GENERAL VIEW OF WEST ABUTMENT
Bridge Inspection Report
Pictures
PHOTO 13
Description TYPICAL PEELING OF PAINT ON STEEL H-PILES, WEST ABUTMENT SHOWN
PHOTO 14
Description GNERAL VIEW OF MISSING RIPRAP PROTECTION AT WEST ABUTMENT
Bridge Inspection Report
Pictures
PHOTO 15
Description EROSION OF EMBANKMENT ON UPSTREAM SIDE OF WEST APPROACH
PHOTO 16
Description EROSION OF EMBANKMENT ON DOWNSTREAM SIDE OF WEST APPROACH
Bridge Inspection Report
Pictures
PHOTO 17
Description EAST APPROACH
PHOTO 18
Description WEST APPROACH
Bridge Inspection Report
Pictures
PHOTO 19
Description SOUTH (UPSTREAM) CHANNEL
PHOTO 20
Description NORTH (DOWNSTREAM) CHANNEL
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