US Bridges

FM 1486 over Rocky Creek

Good

Montgomery County, Texas · 0.45 MI N of SH 105 · Structure no. 121700141602018

Built
1990
35 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
3,065
2024 count
Owner
State
State Highway Agency

About this bridge

FM 1486 over Rocky Creek is a prestressed concrete box beam or girders - multiple carrying FM 1486 over Rocky Creek 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 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 3,065 vehicles a day, roughly 10% of them trucks, projected to reach 3,542 by 2042. The structure is 55 ft (16.8 m) long and 49 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesFM 1486
CrossesRocky Creek
Location0.45 MI N of SH 105
RouteState Highway 1486
StateTexas
Coordinates30.37182, -95.77882
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span55 ft (16.8 m)
Deck width49 ft (15 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,065 (2024)
Projected traffic3,542 by 2042
Trucks10%
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

OwnerState Highway Agency
Maintained byState 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 FM 1486 over Rocky Creek built?

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

What condition is FM 1486 over Rocky Creek 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 August 2024.

How much traffic does FM 1486 over Rocky Creek carry?

About 3,065 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is FM 1486 over Rocky Creek?

The structure is 55 ft (16.8 m) long with a longest span of 55 ft (16.8 m) and a deck 49 ft wide.

Who owns FM 1486 over Rocky Creek?

It is owned by the State Highway Agency.