US Bridges

SH 6 NB over BNSF RR & UP RR

Fair

Grimes County, Texas · 2.6 MI S of SH 90 · Structure no. 170940005003060

Built
1971
54 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
702 ft
6 main spans
Daily traffic
13,286
2023 count
Owner
State
State Highway Agency

About this bridge

SH 6 NB over BNSF RR & UP RR is a prestressed concrete stringer/multi-beam or girder carrying SH 6 NB over BNSF RR & UP RR in Grimes 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 13,286 vehicles a day, roughly 19% of them trucks, projected to reach 17,980 by 2039. The structure is 702 ft (214 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 NB
CrossesBNSF RR & UP RR
Location2.6 MI S of SH 90
RouteState Highway 6
CountyGrimes County
StateTexas
Coordinates30.36128, -96.06293
Functional classRural Principal Arterial - Other

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6 (+2 approach)
Design loadHS 20
Structure length702 ft (214 m)
Longest span105 ft (32 m)
Deck width44 ft (13.5 m)
Roadway width42 ft (12.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,286 (2023)
Projected traffic17,980 by 2039
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 NB over BNSF RR & UP RR built?

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

What condition is SH 6 NB over BNSF RR & UP RR 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 May 2023.

How much traffic does SH 6 NB over BNSF RR & UP RR carry?

About 13,286 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is SH 6 NB over BNSF RR & UP RR?

The structure is 702 ft (214 m) long with a longest span of 105 ft (32 m) and a deck 44 ft wide.

Who owns SH 6 NB over BNSF RR & UP RR?

It is owned by the State Highway Agency.