US Bridges

Lp 336 over Drain

Good

Montgomery County, Texas · 0.90 MI E of IH 45 · Structure no. 121700033811094

Built
1970
55 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
25,264
2023 count
Owner
State
State Highway Agency

About this bridge

Lp 336 over Drain is a concrete culvert carrying Lp 336 over Drain in Montgomery County, Texas. It was built in 1970, so it is 55 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 25,264 vehicles a day, roughly 8% of them trucks, projected to reach 35,370 by 2042. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLp 336
CrossesDrain
Location0.90 MI E of IH 45
RouteState Highway 336
StateTexas
Coordinates30.33701, -95.46361
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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
DeckNot applicable
Main spans3
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,264 (2023)
Projected traffic35,370 by 2042
Trucks8%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$28,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Lp 336 over Drain built?

It was built in 1970, making it 55 years old in 2025.

What condition is Lp 336 over Drain 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 December 2024.

How much traffic does Lp 336 over Drain carry?

About 25,264 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Lp 336 over Drain?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m).

Who owns Lp 336 over Drain?

It is owned by the State Highway Agency.