US Bridges

SH 6 Nb/Sl 340 SB over Union Pacfic RR

Fair

McLennan County, Texas · 4.6 Mi. E. of US 77 · Structure no. 091610025809455

Built
2018
7 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
320 ft
3 main spans
Daily traffic
8,226
2017 count
Owner
State
State Highway Agency

About this bridge

SH 6 Nb/Sl 340 SB over Union Pacfic RR is a prestressed concrete stringer/multi-beam or girder carrying SH 6 Nb/Sl 340 SB over Union Pacfic RR in McLennan County, Texas. It was built in 2018, so it is 7 years old, younger 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 8,226 vehicles a day, roughly 9% of them trucks, projected to reach 11,515 by 2037. The structure is 320 ft (97.5 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSH 6 Nb/Sl 340 SB
CrossesUnion Pacfic RR
Location4.6 Mi. E. of US 77
RouteState Highway 6
CountyMcLennan County
StateTexas
Coordinates31.54362, -97.07031
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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 spans3
Design loadHL 93
Structure length320 ft (97.5 m)
Longest span115 ft (35.1 m)
Deck width40 ft (12.2 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,226 (2017)
Projected traffic11,515 by 2037
Trucks9%
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 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/Sl 340 SB over Union Pacfic RR built?

It was built in 2018, making it 7 years old in 2025.

What condition is SH 6 Nb/Sl 340 SB over Union Pacfic 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 April 2023.

How much traffic does SH 6 Nb/Sl 340 SB over Union Pacfic RR carry?

About 8,226 vehicles per day (2017 count), of which roughly 9% are trucks.

How long is SH 6 Nb/Sl 340 SB over Union Pacfic RR?

The structure is 320 ft (97.5 m) long with a longest span of 115 ft (35.1 m) and a deck 40 ft wide.

Who owns SH 6 Nb/Sl 340 SB over Union Pacfic RR?

It is owned by the State Highway Agency.