US Bridges

FM 1687 over Still Creek

Fair

Brazos County, Texas · 0.4 MI NW of SH 21 · Structure no. 170210156001007

Built
2005
20 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
4,066
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1687 over Still Creek is a concrete culvert carrying FM 1687 over Still Creek in Brazos County, Texas. It was built in 2005, so it is 20 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 4,066 vehicles a day, roughly 10% of them trucks, projected to reach 5,000 by 2033. The structure is 32 ft (9.8 m) long and 56 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFM 1687
CrossesStill Creek
Location0.4 MI NW of SH 21
RouteState Highway 1687
CountyBrazos County
StateTexas
Coordinates30.68, -96.39585
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span9 ft (2.7 m)
Deck width56 ft (17.1 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,066 (2020)
Projected traffic5,000 by 2033
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 1687 over Still Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is FM 1687 over Still 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 February 2023.

How much traffic does FM 1687 over Still Creek carry?

About 4,066 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is FM 1687 over Still Creek?

The structure is 32 ft (9.8 m) long with a longest span of 9 ft (2.7 m) and a deck 56 ft wide.

Who owns FM 1687 over Still Creek?

It is owned by the State Highway Agency.