US Bridges

9th Ave over Main a Canal

Good

Jefferson County, Texas · 0.4 MI NW of SH 73 · Structure no. 201240C01535002

Built
1983
42 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
197 ft
3 main spans
Daily traffic
14,456
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

9th Ave over Main a Canal is a prestressed concrete stringer/multi-beam or girder carrying 9th Ave over Main a Canal in Jefferson County, Texas. It was built in 1983, so it is 42 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 14,456 vehicles a day, roughly 3% of them trucks, projected to reach 20,238 by 2039. The structure is 197 ft (60 m) long and 54 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries9th Ave
CrossesMain a Canal
Location0.4 MI NW of SH 73
RouteCity Street 0
StateTexas
Coordinates29.92996, -93.95157
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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable 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 spans3
Design loadHS 20
Structure length197 ft (60 m)
Longest span65 ft (19.8 m)
Deck width54 ft (16.5 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,456 (2019)
Projected traffic20,238 by 2039
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 9th Ave over Main a Canal built?

It was built in 1983, making it 42 years old in 2025.

What condition is 9th Ave 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 June 2023.

How much traffic does 9th Ave over Main a Canal carry?

About 14,456 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is 9th Ave over Main a Canal?

The structure is 197 ft (60 m) long with a longest span of 65 ft (19.8 m) and a deck 54 ft wide.

Who owns 9th Ave over Main a Canal?

It is owned by the City or Municipal Highway Agency.