9830-011P - Ghiglione Bridge Inspection 2024.pdf
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- Attached to
- AK PRA DENA 10(36), Replace Ghiglione Bridge Federal contract opportunity
- Solicitation number
- 69056725B000009
About this file
This document is a Bridge Inspection Report for the Ghiglione Creek Bridge located in Denali National Park, Alaska. The routine inspection was conducted on 08/21/2023 by the Federal Highway Administration's FLH Office of Bridges and Structures. The steel multi-beam bridge, constructed in 1960, is 139 feet long with three main spans and a deck width of 32.5 feet, carrying the Denali Park Road over Ghiglione Creek.
The inspection revealed significant structural concerns, including all anchor bolts being sheared off at the west abutment, beam ends shifted laterally at the east abutment, and broken weld connections. The bridge is scheduled for replacement in the near future. Key findings include moderate spalling of curbs, delamination at joint ends, light rusting of railings, and erosion of approach embankments. The structure has a B (Major) priority of improvement, with recommendations for repairing slope erosion, installing object markers, and conducting immediate inspections following seismic events. The bridge currently supports normal traffic loads, with an inventory rating of 20 metric tons and an operating rating of 26.3 metric tons.
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BRIDGE INSPECTION REPORT
GHIGLIONE CREEK BRIDGE
DENALI PARK ROAD OVER GHIGLIONE CREEK
DENALI NATIONAL PARK & PRESERVE
LOOKING WEST (AHEAD)
STRUCTURE NO. 9830-011P
INSPECTION TYPE: ROUTINE
INSPECTION DATE: 8/21/2023
NORTH (UPSTREAM) PROFILE
Report prepared by:
Federal Highway Administration FLH Office of Bridges and Structures Bridge Inspection Program 22001 Loudoun County Parkway, Building E2, Suite 200 Ashburn, VA 20147 https://bridge.flhd.fhwa.dot.gov
STRUCTURE SUMMARY STRUCTURE NO. 9830-011P
GHIGLIONE CREEK BRIDGE INSPECTION DATE: 08/21/2023
at the southeast and southwest corners of the bridge has almost cut back to the roadway and should be repaired. In addition, this structure should be inspected for damage immediately following any significant seismic event.
RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 9830-011P
GHIGLIONE CREEK BRIDGE INSPECTION DATE : 08/21/2023
PRIORITY OF IMPROVEMENT226
A (Critical) - Structure is closed, in immediate damage of collapse, or presents a critical safety danger.
B (Major) - Structure is seriously deficient or presents a safety hazard, but can remain open at reduced loads or with frequent inspections.
C (Moderate) - Structure is deficient, functionally obsolete, or requires substantial repairs to prevent a serious deficiency or unsafe condition.
D (Minor) - Structure is generally in good condition. Preventive maintenance may be required.
E (Special) - Structure is under construction or reconstruction.
B
Item No.
Maintenance Recommendations
(GENERALLY NOT FLHP ELIGIBLE)
QTY. UNIT UNIT
COST
PRELIM.
COST
ESTIMATE
222.7
PRELIM. MAINTENANCE TOTAL :
Item No.
REHABILITATION/RECONSTRUCTION
(TYPICALLY NEEDED WITHIN 5 YEARS)
QTY. UNIT
UNIT
COST
PRELIM. COST ESTIMATES
REHAB RECONSTR
PRELIM. REHABILITATION/RECONSTRUCTION TOTAL :
COST ESTIMATE SUMMARY
PRELIM. MAINTENANCE TOTAL :
PRELIM. REHABILITATION TOTAL :
PRELIM. RECONSTRUCTION TOTAL : .
TOTAL ITEMIZED COSTS:
PRELIMINARY ESTIMATE TOTAL *
(*Includes typical contract costs for mobilization, traffic control and design/construction engineering: but does not include detour bridges, work beyond the bridge limits, or work not listed above. Estimates are approximate and are for planning purposes only; they should not be used as a complete or final engineers estimate.)
Remarks : Structure is scheduled to be replaced in the near future.
222.5 APPROACH EMBANKMENT EROSION AT BOTH SOUTHEAST AND SOUTHWEST CORNERS OF BRIDGE. SIGNIFICANT RILLS IN
SOUTHEAST APPROACH EMBANKMENT HAVE ALMOST CUT SLOPE BACK TO ROAD.
STRUCTURE LOAD RATING STRUCTURE NO. 9830-011P
TRUCK TYPE
INVENTORY RATING (NORMAL TRAFFIC) OPERATING RATING (MAXIMUM LOAD)
TONS METRIC TONS TONS METRIC TONS
H 22 20 37 34
HS 29 26 49 44
TYPE 3 27 24 45 41
TYPE 3S2 42 38 71 64
TYPE 3-3 51 46 86 78
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: SERVICE, MOMENT CAPACITY
REMARKS: SEE BRIDGE FILE FOR LOAD RATING CALCULATIONS.
STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 9830-011P
STRUCTURE IDENTIFICATION
(201) PARK: DENALI NATIONAL PARK & PRESERVE (1) STATE:............................................ 020 - ALASKA
(202) STRUCTURE NAME:..............GHIGLIONE CREEK BRIDGE (2) STATE HWY. AGENCY DIST:
(203) STRUCTURE KIND:............... 1 - BRIDGE (3) COUNTY CODE:....................... 02290 YUKON-KOYUKUK
(204) STRUCTURE NUMBER:.........9830-011 P (4) CITY / PLACE CODE:
7 - ALASKA (5) INVENTORY ROUTE:................(205) NPS REGION:........................ 1 6 1 00000 0
(206) ROUTE CODE NUMBER:.......10 (6) FEATURES INTERSECTED:.......... GHIGLIONE CREEK
(207) ROAD SECTION NO:............. (7) FACILITY CARRIED:...................... DENALI PARK ROAD
(208) NPS ROAD CLASS:............... 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO:.............. 9830011P0000000
(209) WITHIN NPS BNDRY?:.......... Yes (9) LOCATION:..................................... 40.19 MILES WEST OF AK ROUTE 3
(MP 237.3) ON DENALI PARK ROAD.
(210) OPERATING UNIT:.................PARK (10) INV. RTE. - MIN. VERT. CLR:..... 99.99 FT ( 99.99 M)
(211) PROJECT NO(S):................... UNKNOWN (11) MILE POINT:................................. 41.90 (KM PT: 12.77)
(212) DRAWING NUMBERS:...........956 (27) YEAR BUILT:
(21) MAINTAINED BY:......................66 - NATIONAL PARK SERVICE (106) YEAR RECONSTRUCTED:
(22) OWNER:................................... 66 - NATIONAL PARK SERVICE (20) TOLL:............................................ 3 - ON FREE ROAD
(37) HISTORIC DESIGNATION:.......... 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:........... 139. FT ( 42.4 M)
(216A) ABUTMENT #1 FDN:........... 4 - PILE BENT
(216B) ABUTMENT #2 FDN:........... 4 - PILE BENT
(217A) PREDOM. PIER FDN:.......... 3 - SPREAD FOOTING ON PILES
(217B) SECOND. PIER FDN:.......... 3 - SPREAD FOOTING ON PILES
(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:..............20 METRIC TONS) (70) BRIDGE POSTING:...................... 5 - EQUAL TO OR ABOVE LEGALTONS ( 18.1
LOADS
(64) OPERATING RATING:..............29 TONS ( 26.3 METRIC TONS)
INSPECTION DATES
(90) INSPECTION DATE: 08/21/2023 (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. 9830-011P
GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA
(16) LATITUDE:................................ 63° 33'23.30" (51) CURB TO CURB WIDTH:............ 28.0 FT ( 8.5 M)
(17) LONGITUDE:............................149°45 '13.90" (52) DECK WIDTH:.......................... 32.5 FT ( 9.9 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:..............300 (34) SKEW ANGLE:......................... 99 °
(30) YEAR OF ADT:......................... 2013 (35) STRUCTURE FLARED:............ 0 - NO FLARE
(114) FUTURE ADT:.........................500 (47) TOTAL HORIZ. CLEARANCE:.. 24 FT ( 7.3 M)
(115) YEAR OF FUTURE ADT:........2033 (50) CURB OR SIDEWALK WIDTHS:
(101) PARALLEL STRUCTURE:......N - NO PARALLEL STRUCTURE LEFT:.................................... 2.3 FT ( 0.7 M)
(38) NAVIGATION CONTROL:.........0 RIGHT:.................................. 2.3 FT ( 0.7 M)
(39) VERTICAL CLEARANCE:.........0 FT ( 0 M) (214) BRIDGE RAIL TYPE
(40) HORIZ. CLEARANCE:..............0 FT ( 0 M) RAIL CONFIGURATION:...... 1 - FULL HEIGHT (NO PARAPET)
(111) ABUT OR PIER PROT:........... MATERIAL:........................... 4 - 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:...............5 (68) DECK GEOMETRY:
(60) SUBSTRUCTURE:.......... 6 (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) PURPOSE OF IMPROVEMENT: 2 - REHAB/RECONSTRUCTION
(36) TRAFFIC SAFETY FEAT: 0 N N N (226) PRIORITY OF IMPROVEMENT: B - MAJOR
ADDITIONAL INFORMATION
(230) STRUCTURE HISTORY:
11/02-EARTHQUAKE. 5/08 & 5/12-SNOOPER INSPECTION.
(231) ADDITIONAL CONSIDERATIONS:
(330) ADDITIONAL CONFIGURATION INFORMATION:
SPAN #1, #2, & #3 - LENGTH 44.9', 45.3', & 44.8'
Inspector: Sara Loftus Structure Number: 9830011P0000000
Inspection Date: 08/21/2023 Facility Carried: DENALI PARK ROAD
Bridge Inspection Report
Pictures
PHOTO 3
Description LOOKING EAST (BACK)
PHOTO 4
Description SOUTH (DOWNSTREAM) PROFILE
Bridge Inspection Report
Pictures
PHOTO 5
Description GENERAL TOPSIDE VIEW LOOKING WEST
PHOTO 6
Description TYPICAL VIEW OF CURB AND RAIL; DOWNSTREAM SIDE SHOWN
Bridge Inspection Report
Pictures
PHOTO 7
Description SPALLING OF CURB AT EAST ABUTMENT ON DOWNSTREAM SIDE
PHOTO 8
Description SPALLING OF CONCRETE ENDWALL/WINGWALL AT EAST ABUTMENT UPSTREAM SIDE
Bridge Inspection Report
Pictures
PHOTO 9
Description GENERAL UNDERSIDE VIEW OF DECK; MIDDLE SPAN SHOWN
PHOTO 10
Description GENERAL UNDERSIDE VIEW OF SUPERSTRUCTURE; MIDDLE SPAN SHOWN
Bridge Inspection Report
Pictures
PHOTO 11
Description TYPICAL VIEW OF BEARINGS; MISSING ALL ANCHOR BOLTS AT WEST ABUTMENT
PHOTO 12
Description TYPICAL BROKEN WELD AND GIRDER SHIFT
Bridge Inspection Report
Pictures
PHOTO 13
Description GENERAL VIEW OF EAST ABUTMENT
PHOTO 14
Description GENERAL VIEW OF PIER 1 LOOKING EAST
Bridge Inspection Report
Pictures
PHOTO 15
Description GENERAL VIEW OF PIER 2 LOOKING WEST
PHOTO 16
Description GENERAL VIEW OF WEST ABUTMENT
Bridge Inspection Report
Pictures
PHOTO 17
Description EAST APPROACH
PHOTO 18
Description WEST APPROACH
Bridge Inspection Report
Pictures
PHOTO 19
Description EROSION AT EAST APPROACH ON DOWNSTREAM SIDE
PHOTO 20
Description UPSTREAM CHANNEL
Bridge Inspection Report
Pictures
PHOTO 21
Description DOWNSTREAM CHANNEL
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