US Bridges

SH 89 SB Ramp over Drainage Ditch

Good

San Patricio County, Texas · 0.10 MI W of Bu 77 · Structure no. 162050010108097

Built
2008
17 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
30 ft
3 main spans
Daily traffic
800
2009 count
Owner
State
State Highway Agency

About this bridge

SH 89 SB Ramp over Drainage Ditch is a concrete culvert carrying SH 89 SB Ramp over Drainage Ditch in San Patricio County, Texas. It was built in 2008, so it is 17 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 800 vehicles a day, roughly 10% of them trucks, projected to reach 1,200 by 2029. The structure is 30 ft (9.1 m) long and 70 ft wide.

CarriesSH 89 SB Ramp
CrossesDrainage Ditch
Location0.10 MI W of Bu 77
RouteState Highway 89
StateTexas
Coordinates28.05424, -97.4979
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span8 ft (2.4 m)
Deck width70 ft (21.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2009)
Projected traffic1,200 by 2029
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 89 SB Ramp over Drainage Ditch built?

It was built in 2008, making it 17 years old in 2025.

What condition is SH 89 SB Ramp 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 April 2024.

How much traffic does SH 89 SB Ramp over Drainage Ditch carry?

About 800 vehicles per day (2009 count), of which roughly 10% are trucks.

How long is SH 89 SB Ramp over Drainage Ditch?

The structure is 30 ft (9.1 m) long with a longest span of 8 ft (2.4 m) and a deck 70 ft wide.

Who owns SH 89 SB Ramp over Drainage Ditch?

It is owned by the State Highway Agency.