US Bridges

SH 85 over Drainage Ditch

Good

Frio County, Texas · 7.50 MI NE of IH 35 · Structure no. 150830030106029

Built
1975
50 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
43 ft
5 main spans
Daily traffic
1,295
2020 count
Owner
State
State Highway Agency

About this bridge

SH 85 over Drainage Ditch is a concrete culvert carrying SH 85 over Drainage Ditch in Frio County, Texas. It was built in 1975, so it is 50 years old, older 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 1,295 vehicles a day, roughly 29% of them trucks, projected to reach 6,210 by 2033. The structure is 43 ft (13.1 m) long and 85 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSH 85
CrossesDrainage Ditch
Location7.50 MI NE of IH 35
RouteState Highway 85
CountyFrio County
StateTexas
Coordinates28.6971, -99.07033
Functional classRural Major Collector

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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span8 ft (2.4 m)
Deck width85 ft (26 m)
Roadway width83 ft (25.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,295 (2020)
Projected traffic6,210 by 2033
Trucks29%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 85 over Drainage Ditch built?

It was built in 1975, making it 50 years old in 2025.

What condition is SH 85 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 July 2024.

How much traffic does SH 85 over Drainage Ditch carry?

About 1,295 vehicles per day (2020 count), of which roughly 29% are trucks.

How long is SH 85 over Drainage Ditch?

The structure is 43 ft (13.1 m) long with a longest span of 8 ft (2.4 m) and a deck 85 ft wide.

Who owns SH 85 over Drainage Ditch?

It is owned by the State Highway Agency.