US Bridges

SH 72 over Rock Quarry Branch

Good

Live Oak County, Texas · 0.5 MI NE of IH 37 · Structure no. 161490027009021

Built
1939
86 years old, rebuilt 1984
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
5,370
2020 count
Owner
State
State Highway Agency

About this bridge

SH 72 over Rock Quarry Branch is a concrete culvert carrying SH 72 over Rock Quarry Branch in Live Oak County, Texas. It was built in 1939 and reconstructed in 1984, so it is 86 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 5,370 vehicles a day, roughly 31% of them trucks, projected to reach 11,420 by 2033. The structure is 33 ft (10.1 m) long and 46 ft wide.

Location

Open in Google Maps
CarriesSH 72
CrossesRock Quarry Branch
Location0.5 MI NE of IH 37
RouteState Highway 72
CountyLive Oak County
StateTexas
Coordinates28.49494, -98.13813
Functional classRural Minor Arterial

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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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 spans3
Design loadH 15
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width46 ft (14.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,370 (2020)
Projected traffic11,420 by 2033
Trucks31%
Lanes on structure2
Traffic directionTwo-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 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 72 over Rock Quarry Branch built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1984.

What condition is SH 72 over Rock Quarry Branch 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 February 2024.

How much traffic does SH 72 over Rock Quarry Branch carry?

About 5,370 vehicles per day (2020 count), of which roughly 31% are trucks.

How long is SH 72 over Rock Quarry Branch?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 46 ft wide.

Who owns SH 72 over Rock Quarry Branch?

It is owned by the State Highway Agency.