US Bridges

Loop 306 over Draw

Good

Tom Green County, Texas · 0.20 MI S of FM 388 · Structure no. 072260026407069

Built
1962
63 years old, rebuilt 2011
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
45 ft
3 main spans
Daily traffic
3,411
2020 count
Owner
State
State Highway Agency

About this bridge

Loop 306 over Draw is a concrete culvert carrying Loop 306 over Draw in Tom Green County, Texas. It was built in 1962 and reconstructed in 2011, so it is 63 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 3,411 vehicles a day, roughly 13% of them trucks, projected to reach 5,480 by 2033. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLoop 306
CrossesDraw
Location0.20 MI S of FM 388
RouteState Highway 306
StateTexas
Coordinates31.44059, -100.37489
Functional classUrban Other Principal 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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,411 (2020)
Projected traffic5,480 by 2033
Trucks13%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 Loop 306 over Draw built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2011.

What condition is Loop 306 over Draw 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 Loop 306 over Draw carry?

About 3,411 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is Loop 306 over Draw?

The structure is 45 ft (13.7 m) long with a longest span of 10 ft (3 m).

Who owns Loop 306 over Draw?

It is owned by the State Highway Agency.