US Bridges

SH 105 over Lawrence Creek

Fair

Montgomery County, Texas · 5.20 MI E of FM 1484 · Structure no. 121700033804068

Built
1943
82 years old, rebuilt 1987
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
200 ft
10 main spans
Daily traffic
11,775
2020 count
Owner
State
State Highway Agency

About this bridge

SH 105 over Lawrence Creek is a concrete slab carrying SH 105 over Lawrence Creek in Montgomery County, Texas. It was built in 1943 and reconstructed in 1987, so it is 82 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 11,775 vehicles a day, roughly 13% of them trucks, projected to reach 14,630 by 2033. The structure is 200 ft (61 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSH 105
CrossesLawrence Creek
Location5.20 MI E of FM 1484
RouteState Highway 105
StateTexas
Coordinates30.3281, -95.24103
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.9 US tons
Inventory rating37 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans10
Design loadH 20
Structure length200 ft (61 m)
Longest span20 ft (6.1 m)
Deck width32 ft (9.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,775 (2020)
Projected traffic14,630 by 2033
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 SH 105 over Lawrence Creek built?

It was built in 1943, making it 82 years old in 2025. It was reconstructed in 1987.

What condition is SH 105 over Lawrence Creek 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 October 2024.

How much traffic does SH 105 over Lawrence Creek carry?

About 11,775 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is SH 105 over Lawrence Creek?

The structure is 200 ft (61 m) long with a longest span of 20 ft (6.1 m) and a deck 32 ft wide.

Who owns SH 105 over Lawrence Creek?

It is owned by the State Highway Agency.