Safe, fast and environment-friendlyThe use of technology such as building information modelling and virtual design and construction, and the extensive use of precast construction have helped bring the completion of the link between Punggol Central and the Kallang-Paya Lebar Expressway forward by almost a year,as well as mitigate safety risks and minimise impact to the environment.

Tampinesflyover

PUNG

GOL E

AST

PUNGGOL CENTRAL

TAMPINES EXPRESSWAY

LORO

NG HAL

US

Temporary roadlinking PunggolEast to KPE (ECP)

A section oflink road fromTPE Exit 7 leadingto Lorong Halus

Slip road from KPE (TPE)exit to Lorong Halus

HALUS LINK

Punggol

Pasir RisNew link road (Phase 1)opening on Nov 25

New slip road (Phase 1)opening in secondquarter of next year

Existing slip roadsto be decommissionedon Nov 25

Phase 2KALLANG-PAYA LEBAREXPRESSWAY

Sung

ei Se

rang

oon

Temporaryfalsework

Sheetpiles

Beam

Deck slab

Crosshead

Column

Pile capPile

Temporaryfalsework

Waterway Waterway

Precastbeam

Deck slab

Precast crosshead

Precastcolumn

Column pilesystem

Innovative and productive method forbridge construction across waterway(Extensive precast system)

Typical conventional methodfor bridge construction acrosswaterway (On-site casting)

Advantages of using precast elements• Reduces need for dangerous work at height• Time-consuming erection of temporary scaffolding is also reduced• Less risk of concrete spillageinto river

Pasir Ris Bridge

Source: LTA ST PHOTO: MATTHIAS CHONG STRAITS TIMES GRAPHICS