US Bridges

Bw 8 over Tidwell RD

Good

Harris County, Texas · 1.6 MI N of US 90 · Structure no. 121020325603491

Built
2011
14 years old
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,606 ft
15 main spans
Daily traffic
40,500
2016 count
Owner
Toll Authority
Local Toll Authority

About this bridge

Bw 8 over Tidwell RD is a prestressed concrete stringer/multi-beam or girder carrying Bw 8 over Tidwell RD in Harris County, Texas. It was built in 2011, so it is 14 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 40,500 vehicles a day, roughly 5% of them trucks, projected to reach 83,000 by 2036. The structure is 1,606 ft (489.5 m) long and 126 ft wide.

Location

Open in Google Maps
CarriesBw 8
CrossesTidwell RD
Location1.6 MI N of US 90
CountyHarris County
StateTexas
Coordinates29.85328, -95.18707
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans15
Design loadHS 20
Structure length1,606 ft (489.5 m)
Longest span116 ft (35.4 m)
Deck width126 ft (38.3 m)
Roadway width121 ft (37 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,500 (2016)
Projected traffic83,000 by 2036
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Bw 8 over Tidwell RD built?

It was built in 2011, making it 14 years old in 2025.

What condition is Bw 8 over Tidwell RD in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2022.

How much traffic does Bw 8 over Tidwell RD carry?

About 40,500 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Bw 8 over Tidwell RD?

The structure is 1,606 ft (489.5 m) long with a longest span of 116 ft (35.4 m) and a deck 126 ft wide.

Who owns Bw 8 over Tidwell RD?

It is owned by the Local Toll Authority.