US Bridges

Lp 336 over BNSF RR

Fair

Montgomery County, Texas · 0.40 MI S of SH 105 · Structure no. 121700033811125

Built
1990
35 years old
Condition
Fair
inspected September 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
970 ft
5 main spans
Daily traffic
13,156
2020 count
Owner
State
State Highway Agency

About this bridge

Lp 336 over BNSF RR is a prestressed concrete stringer/multi-beam or girder carrying Lp 336 over BNSF RR in Montgomery County, Texas. It was built in 1990, so it is 35 years old, younger 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 13,156 vehicles a day, roughly 13% of them trucks, projected to reach 17,590 by 2033. The structure is 970 ft (295.7 m) long and 87 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesLp 336
CrossesBNSF RR
Location0.40 MI S of SH 105
RouteState Highway 336
CountyMontgomery County
StateTexas
Coordinates30.31781, -95.40081
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5 (+5 approach)
Design loadHS 20
Structure length970 ft (295.7 m)
Longest span120 ft (36.6 m)
Deck width87 ft (26.5 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,156 (2020)
Projected traffic17,590 by 2033
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lp 336 over BNSF RR built?

It was built in 1990, making it 35 years old in 2025.

What condition is Lp 336 over BNSF RR 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 September 2022.

How much traffic does Lp 336 over BNSF RR carry?

About 13,156 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is Lp 336 over BNSF RR?

The structure is 970 ft (295.7 m) long with a longest span of 120 ft (36.6 m) and a deck 87 ft wide.

Who owns Lp 336 over BNSF RR?

It is owned by the State Highway Agency.