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SCRRA Railroad Bridge over Oso Creek (Galivan Basin Project)
August 13, 1999
SCRRA Railroad Bridge over Oso Creek (Galivan Basin Project) - This bridge was replaced as part of the Oso Creek Channel improvements to increase channel capacity. Prior to the two weekend bridge replacement outages (1 per track), all up-front work had to be completed. Piles for the new bridge footings were driven through blockout openings through the bridge deck between the rails, after cutting interfering timber railroad ties and carefully selected timber bridge beams as needed. The picture shows crews driving a pile through the tracks for abutment 1 during a 2-hour track #1 outage. Pile driving ceases and workers clear the tracks when the railroad flagman gives signal of train approaching on adjacent track #2.

This bridge was replaced as part of the Oso Creek Channel improvements to increase channel capacity. Prior to the two weekend bridge replacement outages (1 per track), all up-front work had to be completed. Piles for the new bridge footings were driven through blockout openings through the bridge deck between the rails, after cutting interfering timber railroad ties and carefully selected timber bridge beams as needed. The picture shows crews driving a pile through the tracks for abutment 1 during a 2-hour track #1 outage. Pile driving ceases and workers clear the tracks when the railroad flagman gives signal of train approaching on adjacent track #2.
 
SCRRA Railroad Bridge over Oso Creek (Galivan Basin Project)
September 17, 1999
SCRRA Railroad Bridge over Oso Creek (Galivan Basin Project) - Start of Track #1 weekend outage (11 p.m. Friday, 9/17 to 5 p.m. Sunday, 9/19 - 42 hrs.) Crews begin demolishing track #1 side of existing timber trestle bridge.
  • Start of Track #1 weekend outage (11 p.m. Friday, 9/17 to 5 p.m. Sunday, 9/19 - 42 hrs.)
  • Crews begin demolishing track #1 side of existing timber trestle bridge.
 
SCRRA Railroad Bridge over Oso Creek (Galivan Basin Project)
September 18, 1999
SCRRA Railroad Bridge over Oso Creek (Galivan Basin Project) - Saturday very early morning: Crews erect bent #3 pre-cast bent cap.

Saturday very early morning: Crews erect bent #3 pre-cast bent cap.

 
SCRRA Railroad Bridge over Oso Creek (Galivan Basin Project)
September 18, 1999
SCRRA Railroad Bridge over Oso Creek (Galivan Basin Project) - Saturday mid-day: Crews erect 1st of two span #4 pre-cast/prestressed double box girders, setting it down on elastomeric bearing pads, after threading the 4-#14 bar tie-down rods through the 5” diameter pipe blockouts in the girder ends.

Saturday mid-day: Crews erect 1st of two span #4 pre-cast/prestressed double box girders, setting it down on elastomeric bearing pads, after threading the 4-#14 bar tie-down rods through the 5” diameter pipe blockouts in the girder ends.
SCRRA Railroad Bridge over Oso Creek (Galivan Basin Project)
September 19, 1999
SCRRA Railroad Bridge over Oso Creek (Galivan Basin Project) Saturday late afternoon/evening: Workers stand clear while a train passes. All girders are in place. Deck plates, which cover the joints to keep out the gravel ballast, while allowing girder expansion & contraction, are partially installed. In the background, workers are filling and compacting behind abutment #5, in preparation for the pre-cast approach slab. Upon completion of the approach slabs, the railroad’s crews will replace the 2 feet of gravel ballast, railroad ties, and tracks, and finally adjust rail vertical & horizontal alignment with a special track vibratory machine.

Saturday late afternoon/evening: Workers stand clear while a train passes. All girders are in place. Deck plates, which cover the joints to keep out the gravel ballast, while allowing girder expansion & contraction, are partially installed. In the background, workers are filling and compacting behind abutment #5, in preparation for the pre-cast approach slab. Upon completion of the approach slabs, the railroad’s crews will replace the 2 feet of gravel ballast, railroad ties, and tracks, and finally adjust rail vertical & horizontal alignment with a special track vibratory machine.
 
Trabuco Creek Ped. Bridge over the Foothill Toll Road (SR-241)
May 1, 2000
Trabuco Creek Ped. Bridge over the Foothill Toll Road (SR-241) - This picture is an overall view of the bridge, taken from the median of the 241 looking north. The columns have been poured and the falsework and forms for the precast prestressed box girder are visible. The bridge consists of 3 spans of 160 ft., 120 ft. and 100 ft. (total 380 ft.) The bridge fills one of the remaining gaps in the bike trail which extends from the Cleveland National Forest to the beach.

Worker is installing the forms for the inside face of the sloped exterior girders. In foreground, hooked column bars with spirals intersect bent cap shear and flexural bars. Post-tensioning ducts are visible at left and right.
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Trabuco Creek Ped. Bridge over the Foothill Toll Road (SR-241)
May 1, 2000
Trabuco Creek Ped. Bridge over the Foothill Toll Road (SR-241) - Worker is installing the forms for the inside face of the sloped exterior girders. In foreground, hooked column bars with spirals intersect bent cap shear and flexural bars. Post-tensioning ducts are visible at left and right.

This picture is an overall view of the bridge, taken from the median of the 241 looking north. The columns have been poured and the falsework and forms for the precast prestressed box girder are visible. The bridge consists of 3 spans of 160 ft., 120 ft. and 100 ft. (total 380 ft.) The bridge fills one of the remaining gaps in the bike trail which extends from the Cleveland National Forest to the beach.
 
Crown Parkway Bridge over Trabuco Creek
May 14, 2000
Crown Parkway Bridge over Trabuco Creek.Foreground (bent 4): Crane operator is hoisting 80 ft. long rebar cage into 10 ft. large diameter drilled shaft hole. Adjacent rig is drilling 2nd pile shaft. Background (bent 2): Pump operator and crew are pumping concrete for 70 ft. formed column. Far background, top of slope (abutment 1): Pile rig operator is drilling for 24 inch diameter piles.
  • Foreground (bent 4): Crane operator is hoisting 80 ft. long rebar cage into 10 ft. large diameter drilled shaft hole. Adjacent rig is drilling 2nd pile shaft.
  • Background (bent 2): Pump operator and crew are pumping concrete for 70 ft. formed column.
  • Far background, top of slope (abutment 1): Pile rig operator is drilling for 24 inch diameter piles.
 
Bridge Widening: Warner Avenue Bridge over Santa Ana River
Spring 2006
Bridge Widening: Warner Avenue Bridge over Santa Ana River - Pictured is the pile cap extension at the downstream end of pier 4, showing pile embedment cages. Workers are installing pile cap rebar.

Pictured is the pile cap extension at the downstream end of pier 4, showing pile embedment cages. Workers are installing pile cap rebar.
 
Brenan Way
August 15, 2007
Brenan Way - A reinforced concrete storm drain is installed as part of drainage improvements along 17th Street and Brenan Way. The existing corrugated steel pipe storm drain system was deteriorated, and not functioning properly.

A reinforced concrete storm drain is installed as part of drainage improvements along 17th Street and Brenan Way. The existing corrugated steel pipe storm drain system was deteriorated, and not functioning properly.
Bridge Widening: Antonio Parkway - Wildlife Undercrossing
October 17, 2007
Bridge Widening: Antonio Parkway - Wildlife Undercrossing Crews are pouring the soffit and girders, from the deck of the existing bridge, using two concrete pumps simultaneously.

Crews are pouring the soffit and girders, from the deck of the existing bridge, using two concrete pumps simultaneously.
 
Bristol Street
March 11, 2008
Bristol Street - Electric, telephone and cable utilities are undergrounded along SE Bristol Street.

Electric, telephone and cable utilities are undergrounded along SE Bristol Street.

Pile Retrofit: Edinger Bridge over Bolsa Chica Channel
April 29, 2008
Pile Retrofit: Edinger Bridge over Bolsa Chica Channel - Crew has just finished drilling and inserting the 2” pin into the base of the timber pile replacement section. They now prepare to drop the pile section into the channel and float it downstream to where it will be hoisted into position.

Crew has just finished drilling and inserting the 2” pin into the base of the timber pile replacement section. They now prepare to drop the pile section into the channel and float it downstream to where it will be hoisted into position.
 
Pile Retrofit: Edinger Bridge over Bolsa Chica Channel
April 29, 2008
Pile Retrofit: Edinger Bridge over Bolsa Chica Channel - Foreman removes the rigging. The crew has just finished hoisting the new pile replacement section into position. Prior to this, the old pile had been cut off just below the mud line to remove the rotted portion, leaving a short stub exposed. The crew then hoisted the new pile segment to vertical, aligned the 2 inch bottom pin with the drilled vertical hole in the top of the remaining pile stub, coated the butted timber ends with submersible epoxy sealant, and lowered the new timber segment down until the new and old epoxied ends butted tightly together. The crews will now pound into place a pair opposing heavy timber wedges to fill the gap between the pile top and the header above.

Foreman removes the rigging. The crew has just finished hoisting the new pile replacement section into position. Prior to this, the old pile had been cut off just below the mud line to remove the rotted portion, leaving a short stub exposed. The crew then hoisted the new pile segment to vertical, aligned the 2 inch bottom pin with the drilled vertical hole in the top of the remaining pile stub, coated the butted timber ends with submersible epoxy sealant, and lowered the new timber segment down until the new and old epoxied ends butted tightly together. The crews will now pound into place a pair opposing heavy timber wedges to fill the gap between the pile top and the header above.
Seismic Retrofit & Rail Replacement: Santiago Canyon Road Bridge #38
November 5, 2008
Seismic Retrofit & Rail Replacement: Santiago Canyon Road Bridge #38 - Above, forms are in place for extension of deck overhang to accommodate new barrier railing. Below, foreground: Track hoe excavates for footing skirt at bent 2. Center: Bent 3 footing skirt has been formed and poured. Far background: Bent 4 footing skirt construction is under way.
  • Above, forms are in place for extension of deck overhang to accommodate new barrier railing.
  • Below, foreground: Track hoe excavates for footing skirt at bent 2.
  • Center: Bent 3 footing skirt has been formed and poured.
  • Far background: Bent 4 footing skirt construction is under way.
Seismic Retrofit & Rail Replacement: Santiago Canyon Road Bridge #38
December 2, 2008
Seismic Retrofit & Rail Replacement: Santiago Canyon Road Bridge #38 - Skirts were added to existing spread footings, extending them downward further into bedrock. Purple epoxy-coated rebar in picture is for upper footing build-out which connects footing to perimeter skirt (already complete & buried). Workers are installing aluminum forms to pour upper build-out.

Skirts were added to existing spread footings, extending them downward further into bedrock. Purple epoxy-coated rebar in picture is for upper footing build-out which connects footing to perimeter skirt (already complete & buried). Workers are installing aluminum forms to pour upper build-out.
Irvine Avenue
January 13, 2009

Irvine Avenue - Additional lanes under construction on Irvine Avenue, at the Newport Beach Golf Course. The next construction phase includes reconstructing the inner lanes, paving the entire roadway, and median and parkway landscaping.

Additional lanes under construction on Irvine Avenue, at the Newport Beach Golf Course. The next construction phase includes reconstructing the inner lanes, paving the entire roadway, and median and parkway landscaping.

 

 

 

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