US Bridges

SH 121 over Timber Creek

Fair

Fannin County, Texas · 0.5 MI N of US 82 · Structure no. 010750054901030

Built
1970
55 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
41 ft
4 main spans
Daily traffic
4,069
2023 count
Owner
State
State Highway Agency

About this bridge

SH 121 over Timber Creek is a concrete culvert carrying SH 121 over Timber Creek in Fannin County, Texas. It was built in 1970, so it is 55 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 4,069 vehicles a day, roughly 14% of them trucks, projected to reach 6,185 by 2042. The structure is 41 ft (12.4 m) long and 93 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSH 121
CrossesTimber Creek
Location0.5 MI N of US 82
RouteState Highway 121
CountyFannin County
StateTexas
Coordinates33.61253, -96.19197
Functional classRural Major Collector

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 inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length41 ft (12.4 m)
Longest span9 ft (2.7 m)
Deck width93 ft (28.2 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,069 (2023)
Projected traffic6,185 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 121 over Timber Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is SH 121 over Timber 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 December 2024.

How much traffic does SH 121 over Timber Creek carry?

About 4,069 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SH 121 over Timber Creek?

The structure is 41 ft (12.4 m) long with a longest span of 9 ft (2.7 m) and a deck 93 ft wide.

Who owns SH 121 over Timber Creek?

It is owned by the State Highway Agency.