US Bridges

Algoa-Friendswood over Drainage Ditch

Fair

Galveston County, Texas · 1.5 MI N of SH 6 · Structure no. 120850AA0106001

Built
1996
29 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
1,628
2016 count
Owner
County
County Highway Agency

About this bridge

Algoa-Friendswood over Drainage Ditch is a prestressed concrete box beam or girders - multiple carrying Algoa-Friendswood over Drainage Ditch in Galveston County, Texas. It was built in 1996, so it is 29 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 1,628 vehicles a day, projected to reach 530 by 2028. The structure is 50 ft (15.2 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesAlgoa-Friendswood
CrossesDrainage Ditch
Location1.5 MI N of SH 6
RouteCounty Highway 0
CountyGalveston County
StateTexas
Coordinates29.42324, -95.17599
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span50 ft (15.2 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,628 (2016)
Projected traffic530 by 2028
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Algoa-Friendswood over Drainage Ditch built?

It was built in 1996, making it 29 years old in 2025.

What condition is Algoa-Friendswood over Drainage Ditch 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 October 2023.

How much traffic does Algoa-Friendswood over Drainage Ditch carry?

About 1,628 vehicles per day (2016 count).

How long is Algoa-Friendswood over Drainage Ditch?

The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 32 ft wide.

Who owns Algoa-Friendswood over Drainage Ditch?

It is owned by the County Highway Agency.