US Bridges

CR 405 over San Fernando Creek

Fair

Llano County, Texas · 2.1 MI S of SH 71 · Structure no. 141500AA0576001

Built
1940
85 years old, rebuilt 1950
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
96 ft
16 main spans
Daily traffic
19
2020 count
Owner
County
County Highway Agency

About this bridge

CR 405 over San Fernando Creek is a concrete culvert carrying CR 405 over San Fernando Creek in Llano County, Texas. It was built in 1940 and reconstructed in 1950, so it is 85 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 19 vehicles a day, roughly 3% of them trucks, projected to reach 900 by 2042. The structure is 96 ft (29.3 m) long and 16 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCR 405
CrossesSan Fernando Creek
Location2.1 MI S of SH 71
RouteCounty Highway 405
CountyLlano County
StateTexas
Coordinates30.85253, -98.93384
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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans16
Design loadUnknown
Structure length96 ft (29.3 m)
Longest span5 ft (1.5 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19 (2020)
Projected traffic900 by 2042
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$4,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 405 over San Fernando Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1950.

What condition is CR 405 over San Fernando 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 2024.

How much traffic does CR 405 over San Fernando Creek carry?

About 19 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is CR 405 over San Fernando Creek?

The structure is 96 ft (29.3 m) long with a longest span of 5 ft (1.5 m) and a deck 16 ft wide.

Who owns CR 405 over San Fernando Creek?

It is owned by the County Highway Agency.