US Bridges

SH 347 SB over Main a Canal

Good

Jefferson County, Texas · 0.4 MI NW of Spur 136 · Structure no. 201240066701205

Built
2010
15 years old
Condition
Good
inspected July 2024
Type
Other
Prestressed Concrete
Length
88 ft
2 main spans
Daily traffic
8,969
2020 count
Owner
State
State Highway Agency

About this bridge

SH 347 SB over Main a Canal is a prestressed concrete other carrying SH 347 SB over Main a Canal in Jefferson County, Texas. It was built in 2010, so it is 15 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 8,969 vehicles a day, roughly 9% of them trucks, projected to reach 11,310 by 2033. The structure is 88 ft (26.8 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 347 SB
CrossesMain a Canal
Location0.4 MI NW of Spur 136
RouteState Highway 347
CountyJefferson County
StateTexas
Coordinates29.95154, -93.95564
Functional classUrban Other Principal Arterial

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeOther
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length88 ft (26.8 m)
Longest span44 ft (13.4 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,969 (2020)
Projected traffic11,310 by 2033
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 347 SB over Main a Canal built?

It was built in 2010, making it 15 years old in 2025.

What condition is SH 347 SB over Main a Canal 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 July 2024.

How much traffic does SH 347 SB over Main a Canal carry?

About 8,969 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is SH 347 SB over Main a Canal?

The structure is 88 ft (26.8 m) long with a longest span of 44 ft (13.4 m) and a deck 40 ft wide.

Who owns SH 347 SB over Main a Canal?

It is owned by the State Highway Agency.