US Bridges

SH 320 over Boggy Branch

Fair

Falls County, Texas · 4.60 MI SW of US 77 · Structure no. 090740059002011

Built
1940
85 years old, rebuilt 1960
Condition
Fair
inspected December 2022
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
1,177
2020 count
Owner
State
State Highway Agency

About this bridge

SH 320 over Boggy Branch is a concrete culvert carrying SH 320 over Boggy Branch in Falls County, Texas. It was built in 1940 and reconstructed in 1960, 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 1,177 vehicles a day, roughly 14% of them trucks, projected to reach 2,110 by 2033. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSH 320
CrossesBoggy Branch
Location4.60 MI SW of US 77
RouteState Highway 320
CountyFalls County
StateTexas
Coordinates31.15862, -97.09093
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 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum 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 spans3
Design loadH 15
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,177 (2020)
Projected traffic2,110 by 2033
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$400,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 320 over Boggy Branch built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1960.

What condition is SH 320 over Boggy 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 December 2022.

How much traffic does SH 320 over Boggy Branch carry?

About 1,177 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is SH 320 over Boggy Branch?

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

Who owns SH 320 over Boggy Branch?

It is owned by the State Highway Agency.