| Country: | KOR |
| Type: | EX |
| Route: | 153 |
| Alternate Name: | Pyeongtaek-Siheung Expressway 평택시흥 고속도로 |
| Map Custom: | yes |
| Length Km: | 42.6 |
| Established: | 2013 |
| Direction A: | South |
| Terminus A: | W Pyeongtaek JC in Pyeongtaek, Gyeonggi Province Seohaean Expressway Pyeongtaek–Jecheon Expressway |
| Direction B: | North |
| Terminus B: | Gunja JC in Siheung, Gyeonggi-do Yeongdong Expressway |
| Hangul: | 평택시흥고속도로 |
| Rr: | Pyeongtaek Siheung Gosok Doro |
| Mr: | Pyongtaek Sihung Kosok Toro |
The Pyeongtaek–Siheung Expressway, Also 2nd Seohaean Expressway, is an expressway in South Korea, connecting Pyeongtaek to Hwaseong, Ansan, and Siheung. It has Expressway Route No. 153 and is a Branch Line of Seohaean Expressway. The entire length from Pyeongtaek to Siheung is 42.6 km and the posted speed limit is 100 km/h.
39.4 km
| No. | Name | Korean Name | Hanja Name | Connections | Distance | Notes | Location | ||
|---|---|---|---|---|---|---|---|---|---|
| Connected directly with Pyeongtaek–Jecheon Expressway | |||||||||
| Pyeongtaek | 평택 시점 | 平澤 始點 | - | 0.0 | Gyeonggi | ||||
| 1 | 서평택분기점 | 西平澤分岐點 | 0.80 | 0.80 | |||||
| TG | 장안요금소 | 長安料金所 | 6.12 | 6.92 | Pyeongtaek-bound Only | Hwaseong | |||
| 2 | 조암나들목 | 朝岩나들목 | 4.06 | 10.98 | |||||
| 3 | 송산마도나들목 | 松山麻道나들목 | 11.32 | 22.30 | |||||
| SA | Songsan Podo SA | 송산포도휴게소 | 松山葡萄休憩所 | ||||||
| JC | Songsan JC | 송산분기점 | 松山分岐點 | (November 2021) | |||||
| JC | Seonggok JC | 성곡분기점 | 城谷分岐點 | (November 2025) | Ansan | ||||
| 4 | 남안산나들목 | 南安山나들목 | 13.82 | 36.12 | |||||
| TG | 서시흥요금소 | 西始興料金所 | 2.66 | 38.78 | Siheung-bound Only | Siheung | |||
| 5 | 군자분기점 | 君子分岐點 | 0.61 | 39.39 | Incheon-bound Only | ||||
| Connected directly with Yeongdong Expressway | |||||||||