US Bridges

SH 6 NB over Harlan RD

Good

Brazos County, Texas · 3.2 MI SE of FM 159 · Structure no. 170210005002140

Built
2008
17 years old
Condition
Good
inspected February 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
200 ft
1 main span
Daily traffic
18,960
2019 count
Owner
State
State Highway Agency

About this bridge

SH 6 NB over Harlan RD is a prestressed concrete box beam or girders - multiple carrying SH 6 NB over Harlan RD in Brazos County, Texas. It was built in 2008, so it is 17 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 18,960 vehicles a day, roughly 14% of them trucks, projected to reach 17,800 by 2033. The structure is 200 ft (61 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSH 6 NB
CrossesHarlan RD
Location3.2 MI SE of FM 159
RouteState Highway 6
StateTexas
Coordinates30.45872, -96.14643
Functional classRural Principal Arterial - Other

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 inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length200 ft (61 m)
Longest span90 ft (27.4 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,960 (2019)
Projected traffic17,800 by 2033
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH 6 NB over Harlan RD built?

It was built in 2008, making it 17 years old in 2025.

What condition is SH 6 NB over Harlan 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 February 2023.

How much traffic does SH 6 NB over Harlan RD carry?

About 18,960 vehicles per day (2019 count), of which roughly 14% are trucks.

How long is SH 6 NB over Harlan RD?

The structure is 200 ft (61 m) long with a longest span of 90 ft (27.4 m) and a deck 40 ft wide.

Who owns SH 6 NB over Harlan RD?

It is owned by the State Highway Agency.