US Bridges

Bw 8 WB Frtg Rd. over Mykawa & Atsf R/R

Good

Harris County, Texas · 5.2 MI W of IH 45 · Structure no. 121020325604496

Built
2016
9 years old
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,559 ft
13 main spans
Daily traffic
31,500
2015 count
Owner
State
State Highway Agency

About this bridge

Bw 8 WB Frtg Rd. over Mykawa & Atsf R/R is a prestressed concrete stringer/multi-beam or girder carrying Bw 8 WB Frtg Rd. over Mykawa & Atsf R/R in Harris County, Texas. It was built in 2016, so it is 9 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 31,500 vehicles a day, roughly 4% of them trucks, projected to reach 6,300 by 2035. The structure is 1,559 ft (475.2 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBw 8 WB Frtg Rd.
CrossesMykawa & Atsf R/R
Location5.2 MI W of IH 45
RouteState Highway 8
StateTexas
Coordinates29.60097, -95.29838
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans13 (+1 approach)
Design loadHL 93
Structure length1,559 ft (475.2 m)
Longest span133 ft (40.5 m)
Deck width37 ft (11.4 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,500 (2015)
Projected traffic6,300 by 2035
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Bw 8 WB Frtg Rd. over Mykawa & Atsf R/R built?

It was built in 2016, making it 9 years old in 2025.

What condition is Bw 8 WB Frtg Rd. over Mykawa & Atsf R/R 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 WB Frtg Rd. over Mykawa & Atsf R/R carry?

About 31,500 vehicles per day (2015 count), of which roughly 4% are trucks.

How long is Bw 8 WB Frtg Rd. over Mykawa & Atsf R/R?

The structure is 1,559 ft (475.2 m) long with a longest span of 133 ft (40.5 m) and a deck 37 ft wide.

Who owns Bw 8 WB Frtg Rd. over Mykawa & Atsf R/R?

It is owned by the State Highway Agency.