US Bridges

SH 110 over Allen Branch

Fair

Smith County, Texas · 1.1 MI SE of IH 20 · Structure no. 102120050502015

Built
1940
85 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
2,393
2020 count
Owner
State
State Highway Agency

About this bridge

SH 110 over Allen Branch is a concrete culvert carrying SH 110 over Allen Branch in Smith County, Texas. It was built in 1940, 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 2,393 vehicles a day, roughly 14% of them trucks, projected to reach 3,370 by 2039. The structure is 27 ft (8.2 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSH 110
CrossesAllen Branch
Location1.1 MI SE of IH 20
RouteState Highway 110
CountySmith County
StateTexas
Coordinates32.47325, -95.51157
Functional classRural Minor 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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 loadH 15
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,393 (2020)
Projected traffic3,370 by 2039
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$15,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 110 over Allen Branch built?

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

What condition is SH 110 over Allen Branch 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 March 2023.

How much traffic does SH 110 over Allen Branch carry?

About 2,393 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is SH 110 over Allen Branch?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m) and a deck 36 ft wide.

Who owns SH 110 over Allen Branch?

It is owned by the State Highway Agency.