Addendum 7 - Pine Knot Lp
2 MB Posted
- Solicitation number
- 7BR
- Issued by
- Miller County, Georgia
About this file
This is a Bridge Inspection Report addendum prepared by the Georgia Department of Transportation for Marion County, documenting the condition of the Pine Knot Loop Bridge (Structure ID 197-5027-0) over Pine Knot Creek. The inspection was conducted on April 9, 2019, by a team led by Jason T. Edwards with assistant Justin Martin. The 144-foot-by-23.9-foot bridge, built in 1961 and transferred to Marion County in 2000, consists of nine spans with W12X27 steel beams supported on original timber piles and partially replaced steel straddle bents with concrete caps. The deck is a 6-inch reinforced concrete surface with moderate to heavy shrinkage and transverse cracking, while the superstructure received a condition rating of 7 (Good) and the substructure received a condition rating of 4 (Poor). Load posting was reduced following the inspection, with a letter sent on April 29, 2019.
The inspection identified multiple maintenance deficiencies requiring priority action, including pile repair (Priority B), deck spall repairs across various locations (Priority B), guardrail repair at abutment 10 (Priority C), bridge joint sealing (Priority C), and brush and tree cutting (Priority C). Significant deterioration includes severely corroded rebar with spalls up to 34 inches in diameter on the deck bottom, heavily corroded steel piles and caps requiring cleaning and painting, timber pile decay in bent 6 measuring 2.5 inches deep by 19 inches long, and a scour hole developed between bents 8 and 9. All deck joints are leaking, and half of span 1 and all of span 9 have asphalt overlays. The bridge qualifies for maintenance and repair improvements under the Marion County Seven Bridges project, which includes this and six additional county bridges requiring comprehensive work.
Text of this file
Georgia Department of Transportation
6-Revised inventory or operating ratings; load limits
Bridge Inspection Report
District: 4841300000 - D3 District Three
Structure ID:
Location ID:
197-5027-0
197-00207X-000.45N
Inspection Area:
Over: PINE KNOT CREEK
Road Name:
County:
Bridge Information:
Marion
PINE KNOT LOOP
Structure ID:
Marion
197-5027-0
Inspection Area:
Road Name:
4841300000 - D3 District ThreeDistrict:
PINE KNOT LOOP
Location ID:
County:
197-00207X-000.45N PINE KNOT CREEKOver:
Inspection Date:
Evaluation
Topside Inspection Team
Team Leader: Jason T. Edwards
Justin MartinAssistants:
04/09/2019Inspection Type: General
Deck
NBIS Condition 6 - Satisfactory Condition
6" concrete deck
Moderate to heavy shrinkage and light transverse cracking and scaling with exposed aggregate.
Minor working longitudinal cracking on bottom of deck.
Bottom side of deck patches at temporary piles are spalled with rust stains, and some have large spalls with exposed rebar that is heavily corroded with very little rebar remaining - spall diameter is 34" diameter x 2.5" deep.
Half of span 1 has been overlaid with asphalt, also all of span 9 has been overlaid with 1" of asphalt
All deck joints are leaking.
Material: O. Concrete
1. ConcreteDeck Wearing Surface Type:
Superstructure
NBIS Condition 7 - Good Condition
7 W12X27 beams.
Exterrior beams have small bolt holes.
Year Painted:
Temperature (F):
1986Material: M. Steel
Paint Type : 1- Lead Chromate Oil Alkyd System
Substructure
NBIS Condition 4 - Poor Condition
4- origianl timber piles under concrete caps (Cap size 22" H x 20" W x 25.5' L.) some timber piles have been replaced with steel straddle bents consisting of HP12X74 piles and HP12X74 caps.
They are listed as follows:
Pile 2, bent 4 (replaced with a single HP 12 x 74 pile and a concrete encasement)
Pile 2, bent 6 (steel straddle bent with 2 steel HP 12 x 74 piles)
Pile 3, bent 7 (steel straddle bent with 2 steel HP 12 x 74 piles)
Piles 2 and 4, bent 8 (steel straddle bent with 2 steel HP 12 x 74 piles at each pile)
Pile 1, bent 9 (steel straddle bent with 2 steel HP 12 x 74 piles)
Concrete caps have light to moderate cracking and scaling.
Steel caps and piles have light to moderate corrosion with some blistering and need cleaning and painting.
Pile 3, bent 6 has a 2 1/1"D x 6"H x 19"L rotten section.
Forward side of cap at bent 9 has a 1 sq. ft. spall with exposed rebar.
Year Painted:Material: L. Timber-Steel-Concrete
0- Not ApplicablePaint Type :
General
Built: 1961 144' x 23.9' The bridge was given to the county in 2000.
Water data pipe attached to cap at bent 4 on down stream side.
Curb at Abutment 10 has spalled 28"L x 12"h 3"d.
Scour hole has developed between bents 8 and 9.
Posting reduced; Letter sent 4/29/2019. wbp
This Bridge:
Printed: 04/29/2019 Page 2 of 14
197-5027-0
Inspection Area:
Road Name:
4841300000 - D3 District ThreeDistrict:
PINE KNOT LOOP
Location ID:
County:
197-00207X-000.45N PINE KNOT CREEKOver:
Confined Space: Traffic Control Needed:No No
Conditional Situations
Access Equipment:
Waders:
None
Hip boots
Topside Boat: None
Special Imaging Device: None
Equipment Used
Load Rating and Posting
Truck Type Gross/H-Modified HSModified Tandem 3-S-2 Log Piggy
Calculated Posting
Posting Required
Existing Posting
16 23 16 27 22 00
Yes No Yes No Yes No
21 00 22 21 29 00
Item 103 Temporarily Shored : Posting Required:Yes Yes
B. Open, posting recommendedItem 41 - Structure Open, Posted or Closed:
Element Data
Element Quantity State 1 State 2 State 3 State 4Parent Element Env*Measurement Unit
12-Reinforced Concrete Deck 3600 2608 9922SQUARE FEET
510-Wearing Surfaces (12) 200 12-Reinforced Concrete
Deck
2002SQUARE FEET
107-Steel Open Web Girder/Beam 1008 10082Linear Foot
515-Steel Protective Coating (107) 3627 107-Steel Open Web
Girder/Beam
36272SQUARE FEET
215-Reinforced Conc Abutment 52 522Linear Foot
225-Steel Pile 11 112Each
515-Steel Protective Coating (225) 277225-Steel Pile 2772SQUARE FEET
228-Timber Pile 26 17 3 62Each
234-Reinforced Conc Pier Cap 208 206 22Linear Foot
301-Pourable Joint Seal 225 0 2252Linear Foot
330-Metal Bridge Railing 288 2882Linear Foot
Env* = Environment
Defects
Element State 2 State 3 State 4Defect
12-Reinforced Concrete Deck 105Cracking (RC and Other)
12-Reinforced Concrete Deck 864Abrasion/Wear (PSC/RC)
12-Reinforced Concrete Deck 23Delamination/Spall/Patched Area
228-Timber Pile 3 6Decay/Section Loss
234-Reinforced Conc Pier Cap 2Cracking (RC and Other)
301-Pourable Joint Seal 225Leakage
Printed: 04/29/2019 Page 3 of 14
197-5027-0
Inspection Area:
Road Name:
4841300000 - D3 District ThreeDistrict:
PINE KNOT LOOP
Location ID:
County:
197-00207X-000.45N PINE KNOT CREEKOver:
Maintenance Items
Activity Work
Quantity Priority Location
Completion
Date Comments
Inspection
Date
825 - PILE REPAIR/RELATED
REP (NUMBER PILES)
B Pile 3, bent 6 replace04/09/2019
615 - REPAIR/INSTALL
GUARDRAIL (LINEAR FEET)
C abutment 10 repair guardrail04/09/2015
810 - DECK REPAIR (SQUARE
FEET)
B various repair spalls04/09/2015
520 - BRUSH AND TREE
CUTTING (PERSON HOURS)
C all cut and remove brush and tree 04/09/2015
800 - BRIDGE JOINT SEALING
(LINEAR FEET)
C all clean and seal04/09/2015
Printed: 04/29/2019 Page 4 of 14
197-5027-0
Inspection Area:
Road Name:
4841300000 - D3 District ThreeDistrict:
PINE KNOT LOOP
Location ID:
County:
197-00207X-000.45N PINE KNOT CREEKOver:
No Specialized Inspection performed on this bridge.
Printed: 04/29/2019 Page 5 of 14
197-5027-0
Inspection Area:
Road Name:
4841300000 - D3 District ThreeDistrict:
PINE KNOT LOOP
Location ID:
County:
197-00207X-000.45N PINE KNOT CREEKOver:
No Other Special Inspection performed on this bridge.
Printed: 04/29/2019 Page 6 of 14
197-5027-0
Inspection Area:
Road Name:
4841300000 - D3 District ThreeDistrict:
PINE KNOT LOOP
Location ID:
County:
197-00207X-000.45N PINE KNOT CREEKOver:
No Fracture Critical Inspection performed on this bridge.
Printed: 04/29/2019 Page 7 of 14
197-5027-0
Inspection Area:
Road Name:
4841300000 - D3 District ThreeDistrict:
PINE KNOT LOOP
Location ID:
County:
197-00207X-000.45N PINE KNOT CREEKOver:
Bridge Components
Bearing Data
Span # Rear Type Bearing Forward Type Bearing Remarks
1 08 - Beam on Cap08 - Beam on Cap
2 08 - Beam on Cap08 - Beam on Cap
3 08 - Beam on Cap08 - Beam on Cap
4 08 - Beam on Cap08 - Beam on Cap
5 08 - Beam on Cap08 - Beam on Cap
6 08 - Beam on Cap08 - Beam on Cap
7 08 - Beam on Cap08 - Beam on Cap
8 08 - Beam on Cap08 - Beam on Cap
9 08 - Beam on Cap08 - Beam on Cap
Superstructure Data
Span # Beam Type Beam Spacing RemarksLength # Beams
1 4Steel W12X2716 7
2 4Steel W12X2716 7
3 4Steel W12X2716 7
4 4Steel W12X2716 7
5 4Steel W12X2716 7
6 4Steel W12X2716 7
7 4Steel W12X2716 7
8 4Steel W12X2716 7
9 4Steel W12X2716 7
Printed: 04/29/2019 Page 8 of 14
197-5027-0
Inspection Area:
Road Name:
4841300000 - D3 District ThreeDistrict:
PINE KNOT LOOP
Location ID:
County:
197-00207X-000.45N PINE KNOT CREEKOver:
This bridge has no intersected feature.
Printed: 04/29/2019 Page 9 of 14
197-5027-0
Inspection Area:
Road Name:
4841300000 - D3 District ThreeDistrict:
PINE KNOT LOOP
Location ID:
County:
197-00207X-000.45N PINE KNOT CREEKOver:
No Underwater Inspection performed on this bridge.
Printed: 04/29/2019 Page 10 of 14
197-5027-0
Inspection Area:
Road Name:
4841300000 - D3 District ThreeDistrict:
PINE KNOT LOOP
Location ID:
County:
197-00207X-000.45N PINE KNOT CREEKOver:
F :
C :
D :
A :
B :
E :
Waterway Information
G :
H :
J :
I :
K :
Location of Bridge Height :
Scour Condition :
Waterway Adequacy :
Channel Protection :
Comments :
5' forward Bent 5
Substructure Skew = Channel Skew = Stream Angle =0 0 0
Bridge Height Taken: UPSTREAM
Printed: 04/29/2019 Page 11 of 14
197-5027-0
Inspection Area:
Road Name:
4841300000 - D3 District ThreeDistrict:
PINE KNOT LOOP
Location ID:
County:
197-00207X-000.45N PINE KNOT CREEKOver:
Actual Vertical Clearance at
Point of Impact :
Total # of Beams in Span :
# of Damaged Beams :
Beam Type :
Span # with Beam Damage :
Minimum Vertical Clearance :
0 ft - 0 in
0 ft - 0 in
Collision Information
Posted Vertical Clearance :
Report Type :
0 ft - 0 in
Report Date :
Damage Location in Span :
Damage Details :
Repair Details :
Damage Type : 0.0
Additional Comments :
Repairs Required : No Repairs Made : No
Printed: 04/29/2019 Page 12 of 14
197-5027-0
Inspection Area:
Road Name:
4841300000 - D3 District ThreeDistrict:
PINE KNOT LOOP
Location ID:
County:
197-00207X-000.45N PINE KNOT CREEKOver:
Photographs
197-5027-0_B_8;BENT-6 (2).jpg
SKETCH
197-5027-0_roadway_2019-4-9.JPG
Looking north
197-5027-0_sideview_2019-4-9.JPG
Required sideview
197-5027-0_superstructure_2019-4-9.JPG
Typical underneath
197-5027-0_forward_posting_2019-4-9.JPG
Posted on both sides
197-5027-0_rear_posting_2019-4-9.JPG
Posted on both sides
Printed: 04/29/2019 Page 13 of 14
197-5027-0
Inspection Area:
Road Name:
4841300000 - D3 District ThreeDistrict:
PINE KNOT LOOP
Location ID:
County:
197-00207X-000.45N PINE KNOT CREEKOver:
Photographs
197-5027-0_pile_3_bent_6_2019-4-9.JPG
Pile 3, bent 6 2 1/2" D x 6"H x 19"L rotten section
197-5027-0_bottom_deck_spalling_2019-4-9.JPG
Bottom of deck spall with exposed rebar, this is where holes were put in the deck for replacement piles
Printed: 04/29/2019 Page 14 of 14
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