US Bridges

CR 3109 over Lamar Branch

Good

Camp County, Texas · 2.0 MI E of FM 1519 · Structure no. 190320AA3109001

Built
1969
56 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
400
2013 count
Owner
County
County Highway Agency

About this bridge

CR 3109 over Lamar Branch is a concrete culvert carrying CR 3109 over Lamar Branch in Camp County, Texas. It was built in 1969, so it is 56 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 400 vehicles a day, roughly 22% of them trucks, projected to reach 600 by 2033. The structure is 33 ft (10.1 m) long and 55 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCR 3109
CrossesLamar Branch
Location2.0 MI E of FM 1519
RouteCounty Highway 3109
StateTexas
Coordinates32.98128, -95.05139
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width55 ft (16.9 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2013)
Projected traffic600 by 2033
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 3109 over Lamar Branch built?

It was built in 1969, making it 56 years old in 2025.

What condition is CR 3109 over Lamar Branch 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 2024.

How much traffic does CR 3109 over Lamar Branch carry?

About 400 vehicles per day (2013 count), of which roughly 22% are trucks.

How long is CR 3109 over Lamar Branch?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 55 ft wide.

Who owns CR 3109 over Lamar Branch?

It is owned by the County Highway Agency.