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HOUSTON ARCHIVE · ILLUSTRATED HISTORY

IH-45 North Reconstruction Schematics

A May 2001 account of the I-45 North widening near Crighton Road, followed by seven final-design plan sheets from Loop 336 southward.

Created and last updated 1-May-2001

May 2001 map of I-45 North from Houston to Conroe marking the Crighton Road widening project and other work in progress.

Source: TxDOT, as identified by the archived page

Status May 2001: one new project and four already underway.

From the Houston archive. The award date and project status below reflect the page's May 2001 update.

IH-45 North Reconstruction Schematics

01 / May 2001 account

I-45 North widening near Crighton Road

These schematics were taken from the TxDOT web site and are a final design

This $27.9 million widening project is the latest in a series of projects to upgrade IH-45 in the vicinity of the Woodlands, which is 30 miles north of downtown Houston. The project will be awarded in June 2001. This project will expand the freeway to 8 continuous main lanes, 6 feeder road lanes, and a wide paved center section for a future HOV lane. This project is urgently needed to relieve congestion on this section of the freeway, which currently has 4 main lanes and 4 feeder lanes. According to the TxDOT unified transportation plan, this is the northernmost section that will be upgraded to 8 main lanes. North of this section, present plans show that the freeway will be upgraded to 6 main lanes all the way to the Montgomery/Walker county line, which is about halfway between Conroe and Huntsville.

The map below summarizes the projects in progress on IH-45 north. A total of $160 million in work is currently in progress.

May 2001 map of I-45 North from Houston to Conroe marking the Crighton Road widening project and other work in progress.

Source: TxDOT, as identified by the archived page

I-45 North construction status map

Location map.

02 / Final design sequence

Schematics from Loop 336 southward

These schematics start at the north end and work southward.

Engineering plan for I-45 at Loop 336 showing the northbound and southbound main-lane transition.

Source: TxDOT, as identified by the archived page

At 336

This shows the 8 lane freeway to the south transitioning to the 4 lane freeway to the north.

Engineering plan for I-45 south of Loop 336 showing the main lanes, frontage roads and ramp alignment.

Source: TxDOT, as identified by the archived page

South of 336

Still in the transition zone.

Engineering plan for I-45 between Loop 336 and Crighton Road showing the wide paved center section.

Source: TxDOT, as identified by the archived page

Between 336 and Crighton Road

Notice the 49 ft wide (14.9m) paved center section, which will accommodate a future HOV lane.

Engineering plan for I-45 immediately north of Crighton Road showing the approach toward the overpass.

Source: TxDOT, as identified by the archived page

Just north of Crighton

This leads into the overpass.

Engineering plan for the I-45 and Crighton Road overpass.

Source: TxDOT, as identified by the archived page

At Crighton

The overpass.

Engineering plan for I-45 immediately south of Crighton Road showing the main lanes, frontage roads and ramp alignment.

Source: TxDOT, as identified by the archived page

Just south of Crighton

This plan sheet continues the final design immediately south of Crighton Road.

Engineering plan for the southern end of the I-45 widening project south of Crighton Road.

Source: TxDOT, as identified by the archived page

South of Crighton

The southern end of this project.

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