US Bridges

SH 6 SB over Bs 6 NB

Fair

Brazos County, Texas · 2.71 MI SE of SH 30 · Structure no. 170210004912106

Built
1971
54 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
315 ft
1 main span
Daily traffic
17,650
2013 count
Owner
State
State Highway Agency

About this bridge

SH 6 SB over Bs 6 NB is a steel continuous stringer/multi-beam or girder carrying SH 6 SB over Bs 6 NB in Brazos County, Texas. It was built in 1971, so it is 54 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 17,650 vehicles a day, roughly 14% of them trucks, projected to reach 24,710 by 2033. The structure is 315 ft (96 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSH 6 SB
CrossesBs 6 NB
Location2.71 MI SE of SH 30
RouteState Highway 6
CountyBrazos County
StateTexas
Coordinates30.59245, -96.29043
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length315 ft (96 m)
Longest span155 ft (47.2 m)
Deck width44 ft (13.5 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,650 (2013)
Projected traffic24,710 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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH 6 SB over Bs 6 NB built?

It was built in 1971, making it 54 years old in 2025.

What condition is SH 6 SB over Bs 6 NB in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2023.

How much traffic does SH 6 SB over Bs 6 NB carry?

About 17,650 vehicles per day (2013 count), of which roughly 14% are trucks.

How long is SH 6 SB over Bs 6 NB?

The structure is 315 ft (96 m) long with a longest span of 155 ft (47.2 m) and a deck 44 ft wide.

Who owns SH 6 SB over Bs 6 NB?

It is owned by the State Highway Agency.