US Bridges

Old HWY 105 over Base Creek

Fair

Montgomery County, Texas · 2.0 MI NW of FM 2854 · Structure no. 121700AA0313001

Built
1995
30 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
39 ft
3 main spans
Daily traffic
350
2014 count
Owner
County
County Highway Agency

About this bridge

Old HWY 105 over Base Creek is a concrete culvert carrying Old HWY 105 over Base Creek in Montgomery County, Texas. It was built in 1995, so it is 30 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 350 vehicles a day, projected to reach 400 by 2034. The structure is 39 ft (11.9 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesOld HWY 105
CrossesBase Creek
Location2.0 MI NW of FM 2854
RouteCounty Highway 0
CountyMontgomery County
StateTexas
Coordinates30.33843, -95.5631
Functional classRural Local

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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than 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 spans3
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span11 ft (3.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2014)
Projected traffic400 by 2034
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old HWY 105 over Base Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Old HWY 105 over Base 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 2023.

How much traffic does Old HWY 105 over Base Creek carry?

About 350 vehicles per day (2014 count).

How long is Old HWY 105 over Base Creek?

The structure is 39 ft (11.9 m) long with a longest span of 11 ft (3.4 m) and a deck 32 ft wide.

Who owns Old HWY 105 over Base Creek?

It is owned by the County Highway Agency.