US Bridges

Magnolia Ave over Drainage Ditch

Good

Galveston County, Texas · 0.3 Miles East SH 146 · Structure no. 120850C00106001

Built
2010
15 years old
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
100
2012 count
Owner
City
City or Municipal Highway Agency

About this bridge

Magnolia Ave over Drainage Ditch is a prestressed concrete box beam or girders - multiple carrying Magnolia Ave over Drainage Ditch in Galveston 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 100 vehicles a day, roughly 2% of them trucks, projected to reach 150 by 2034. The structure is 100 ft (30.5 m) long and 40 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesMagnolia Ave
CrossesDrainage Ditch
Location0.3 Miles East SH 146
RouteCounty Highway 0
StateTexas
Coordinates29.39845, -94.94651
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadUnknown
Structure length100 ft (30.5 m)
Longest span40 ft (12.2 m)
Deck width40 ft (12.3 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2012)
Projected traffic150 by 2034
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Magnolia Ave over Drainage Ditch built?

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

What condition is Magnolia Ave over Drainage Ditch 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 December 2023.

How much traffic does Magnolia Ave over Drainage Ditch carry?

About 100 vehicles per day (2012 count), of which roughly 2% are trucks.

How long is Magnolia Ave over Drainage Ditch?

The structure is 100 ft (30.5 m) long with a longest span of 40 ft (12.2 m) and a deck 40 ft wide.

Who owns Magnolia Ave over Drainage Ditch?

It is owned by the City or Municipal Highway Agency.