US Bridges

IH 37 Efr over Rock Quarry Branch

Fair

Live Oak County, Texas · 0.6 MI SE of SH 72 · Structure no. 161490007401032

Built
1937
88 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
44 ft
4 main spans
Daily traffic
80
2013 count
Owner
State
State Highway Agency

About this bridge

IH 37 Efr over Rock Quarry Branch is a concrete culvert carrying IH 37 Efr over Rock Quarry Branch in Live Oak County, Texas. It was built in 1937, so it is 88 years old, older 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 80 vehicles a day, projected to reach 110 by 2033. The structure is 44 ft (13.4 m) long and 46 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesIH 37 Efr
CrossesRock Quarry Branch
Location0.6 MI SE of SH 72
RouteInterstate 37
CountyLive Oak County
StateTexas
Coordinates28.48428, -98.13503
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 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 spans4
Design loadH 15
Structure length44 ft (13.4 m)
Longest span10 ft (3 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2013)
Projected traffic110 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 IH 37 Efr over Rock Quarry Branch built?

It was built in 1937, making it 88 years old in 2025.

What condition is IH 37 Efr over Rock Quarry Branch 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 February 2024.

How much traffic does IH 37 Efr over Rock Quarry Branch carry?

About 80 vehicles per day (2013 count).

How long is IH 37 Efr over Rock Quarry Branch?

The structure is 44 ft (13.4 m) long with a longest span of 10 ft (3 m) and a deck 46 ft wide.

Who owns IH 37 Efr over Rock Quarry Branch?

It is owned by the State Highway Agency.