FM 2004 begins near the village of Jones Creek and the TDCJClemens Unit prison, at an intersection with SH 36; the roadway past SH 36 is FM 2611. The route travels to the northeast, crossing the Brazos River and entering Lake Jackson, where it intersects SH 332 and then the SH 288 expressway north of Brazos Mall. FM 2004 travels through Richwood before entering unincorporated areas of Brazoria County, south of Danbury and Liverpool, and north of the Brazoria National Wildlife Refuge. The highway crosses a steep bridge over Chocolate Bayou and passes chemical plants before entering Galveston County. The route turns more to the north, crossing SH 6 in Hitchcock. The route begins a brief concurrency with FM 1764 in La Marque just prior to a junction with IH 45. FM 1764 turns to the east past the IH 45 junction, while FM 2004 resumes its northerly route through Texas City, passing of Mall of the Mainland before ending at SH 3. In 2005, the Brazoria County section of FM 2004, from the Galveston County line to SH 36, was designated the Jason Oliff Memorial Highway in honor of Brazoria County Sheriff Deputy Jason Oliff. Oliff was killed on December 5, 2005, while placing flares in front of the BP Amoco plant on FM 2004 just southwest of the FM 2917 intersection.
History
FM 2004 was first designated in Galveston County on December 17, 1952; its routing then was from SH 3 to SH 6, and replaced the section of FM 1765 south of its western terminus. It was extended to SH 288 in Brazoria County on June 28, 1964, replacing most of FM 1561, which was cancelled. The remainder of FM 1561 north to SH 6 became part of FM 646. The southern terminus saw two more changes: a short extension from SH 288 to SH 332 in Lake Jackson on June 1, 1965, and an extension to the current terminus at SH 36 on September 29, 1977. TxDOT edited the designation by September 17, 1979 to indicate a discontinuity at FM 1764 ; that amendment was repealed from the official description on October 16, 1989. On June 27, 1995, the mileage of the original section between SH 3 and SH 6 was transferred to Urban Road 2004 ; as with other urban roads, TxDOT continues to sign the route with the "Farm Road" marker.
