US Bridges

75th ST NB over Main B Canal

Fair

Jefferson County, Texas · 1.2 MI NE of US 69 · Structure no. 201240C01790011

Built
1981
44 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
90 ft
3 main spans
Daily traffic
12,930
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

75th ST NB over Main B Canal is a prestressed concrete box beam or girders - multiple carrying 75th ST NB over Main B Canal in Jefferson County, Texas. It was built in 1981, so it is 44 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 12,930 vehicles a day, projected to reach 12,930 by 2035. The structure is 90 ft (27.4 m) long and 32 ft wide.

Location

Open in Google Maps
Carries75th ST NB
CrossesMain B Canal
Location1.2 MI NE of US 69
RouteCity Street 0
CountyJefferson County
StateTexas
Coordinates29.95094, -93.96991
Functional classUrban Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
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 typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,930 (2015)
Projected traffic12,930 by 2035
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$5,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 75th ST NB over Main B Canal built?

It was built in 1981, making it 44 years old in 2025.

What condition is 75th ST NB over Main B Canal 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 July 2023.

How much traffic does 75th ST NB over Main B Canal carry?

About 12,930 vehicles per day (2015 count).

How long is 75th ST NB over Main B Canal?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 32 ft wide.

Who owns 75th ST NB over Main B Canal?

It is owned by the City or Municipal Highway Agency.