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1. Gauff Ingenieure
Internal Report 1/5 Signature

2. Gauff Ingenieure
PIPE CULVERTS COMPLETED DURING THE MONTH OF FEBRUARY.
- Surround:-km 36.859
- Bed and surround – 35.579 (1x900mm diameter),32.740 (1x900mm diameter), 31.249 (2x1200mm
diameter)
BOX CULVERTS COMPLETED DURING THE MONTH.
- Top deck – km 21.824
- Bottom slab and Top deck:- km 21.566/9.115
BRIDGES COMPLETED DURING THE MONTH.
- Walling/Shaft:- km-4.843(2nd
lift abutment 2)/ 52.160 (Abutment 1 and 2, Pier head capping 1
- Top deck:-NILL
Internal Report 2/5 Signature

3. Gauff Ingenieure
STRUCTURAL BRIEF FOR THE MONTH OF FEBRUARY
BILL No 8. Culverts and drainage works.
Pipe culverts
Km 36.859(2x1200mm)
- Formwork erection for surround, wing walls and head walls including and pouring of concrete class
25/20.
- Stripping of formwork for wing walls, head beam and surround.
- Back filling both sides of access pipe culverts 1st to 8th layers
Km 36.573 (1x900mm)
- Excavation, filling under structures and pouring of blinding concrete
- Fixing of formwork for bottom slab including Pouring of concrete class 25/20.
- Formwork erection for surround, wing walls and head walls including pouring of concrete for surround
class 25/20.
- Stripping of formwork for wing walls, head beam and surround.
- Backfilling to 7th
layer completed
Km 32.740 (1x900mm)
- Excavation, filling under structures and pouring of blinding concrete
- Fixing of formwork for bottom slab including Pouring of concrete class 25/20.
- Formwork erection for surround, wing walls and head walls including placing of concrete for surround
class 25/20.
- Stripping of formwork for wing walls, head beam and surround.
Km 31.249 (2x1200mm)
- Excavation, filling under structures and pouring of blinding concrete
- Fixing of formwork for bottom slab including Pouring of concrete class 25/20.
- Formwork erection for surround, wing walls and head walls including placing of concrete for surround
class 25/20 Stripping of formwork for wing walls, head beam and surround.
- Stripping of formwork for wing walls, head beam and surround.
Backfilling of completed cross pipe culverts:-
- 39.112/37.075/36.859/36.573/36.294/35.979/35.880
Stone pitching for protection of side slopes to cross pipe culverts
- 50.704/49.206/48.358/48.168/48.138
Setting out of pipe culverts:-
- 27.620/26.160/
Lorry park traffic island and footpath at km 70.880RHS and 70.600LHS (Log logo)
- Setting out of both traffic island and footpath.
- Excavation, placing and concreting of reinforced concrete bollards to the traffic island
- Erection of formwork and fixing reinforcements BRC MeshA252 double layer to the base of both traffic
island and footpath.
- Pouring of concrete class 25/20 to traffic island and footpath, curing and removal of formwork.
Box culverts
- Stone pitching and gabion protection works completed on the following box culverts:-
55.659/55.742/55.820/54.398/54.718/64.880/64.956/61.171/61.376/54.718/54.398/63.350.
- Stone pitching and gabion protection in progress at km 67.050
Internal Report 3/5 Signature

4. Gauff Ingenieure
Km 30.675 (5cell 3.0x2.5m).
- Backfilling to both sides of walls and wing walls side (1st
and 12th
layer.)
Km 29.658(2 cell 2.0x1.5m).
- Backfilling to both sides of walls and wing walls side (1st
and 8th
layer.)
Km 0.447 (3 cell 3.0x2.0m)
- Removal of existing Armco pipe culvert
- Setting out and excavation done.
- Back filling of under structures 1 and 2nd
layers done.
Km 1.477 (4 cell 3.0x2.0m)
- Removal of existing Armco/concrete pipe culvert
- Setting out and excavation done.
- Back filling under structures with selected material done (1 Layer)
Km 22.824 (1 cell 3.0x2.0m)
- Formwork erection of shear walls, wing walls, winglets, top deck and headwalls including pouring of
structural concrete class 30/20.
- Removal of external formwork.
Km 21.566 (2 cell 3.0x2.0m)
- Formwork erection for the base slab and pouring of structural concrete class 30/20
- Erection of formwork for shear wall, wing walls, winglets and top deck.
- Pouring of structural concrete class 30/20 for the walls and top deck slab.
- External formwork removal done.
Km 9.115 (2 cell 2.0x1.5m)
- Excavation, backfilling under structures and compaction.
- Pouring of non-structural concrete class 15/20 for blinding
- Erection of formwork for the base lab and pouring of structural concrete class 30/20
- Erection of formwork for the shear walls, wing walls, winglets and top deck including pouring of
structural concrete class 30/20.
BILL No 21. Bridge works
New bridge at km 52.160
- Fixing of formwork, steel for pier head of bridge pier 1 Merille side and placing in position of stainless
dowel including pouring of concrete class 30/20.
- Fixing of formwork, steel reinforcement bars for bearing beam capping/placing in position of stainless
dowel bars, Parapet walls and wing walls for both abutment 1 and 2 including pouring of structural
concrete class 30/20.
New bridge at km 20.600
- NIL
New bridge at km 4.843
- Erection of formwork and fixing of steel reinforcement bars for the 2nd
lift of abutment 2 Marsabit side
Internal Report 4/5 Signature

5. Gauff Ingenieure
and pouring of structural concrete class 30/20
- Erection of formwork and steel reinforcement bars for the bearing beam capping of abutment 2
Marsabit side (3rd
lift)
- Fixing of steel reinforcement bars for the 2nd
lift of abutment 1 Merille side in progress.
-
Internal Report 5/5 Signature

6. Gauff Ingenieure
and pouring of structural concrete class 30/20
- Erection of formwork and steel reinforcement bars for the bearing beam capping of abutment 2
Marsabit side (3rd
lift)
- Fixing of steel reinforcement bars for the 2nd
lift of abutment 1 Merille side in progress.
-
Internal Report 5/5 Signature