US Bridges

RM 2323 over Cottonwood Creek

Good

Llano County, Texas · 22.5 MI SW of SH 16 · Structure no. 141500241101002

Built
1965
60 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
122
2020 count
Owner
State
State Highway Agency

About this bridge

RM 2323 over Cottonwood Creek is a concrete culvert carrying RM 2323 over Cottonwood Creek in Llano County, Texas. It was built in 1965, so it is 60 years old, older 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 122 vehicles a day, roughly 2% of them trucks, projected to reach 110 by 2033. The structure is 26 ft (7.9 m) long and 29 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesRM 2323
CrossesCottonwood Creek
Location22.5 MI SW of SH 16
RouteState Highway 2323
StateTexas
Coordinates30.52784, -98.92565
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 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 adequacy6: Equal to 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 length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width29 ft (8.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic122 (2020)
Projected traffic110 by 2033
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 RM 2323 over Cottonwood Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is RM 2323 over Cottonwood 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 May 2023.

How much traffic does RM 2323 over Cottonwood Creek carry?

About 122 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is RM 2323 over Cottonwood Creek?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m) and a deck 29 ft wide.

Who owns RM 2323 over Cottonwood Creek?

It is owned by the State Highway Agency.