US Bridges

Gattis School RD over Dyer Branch

Good

Williamson County, Texas · 2.55 MI E of IH 35 · Structure no. 142460E00455005

Built
1996
29 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
52 ft
5 main spans
Daily traffic
18,393
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Gattis School RD over Dyer Branch is a concrete culvert carrying Gattis School RD over Dyer Branch in Williamson County, Texas. It was built in 1996, so it is 29 years old, younger 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 18,393 vehicles a day, roughly 2% of them trucks, projected to reach 26,890 by 2030. The structure is 52 ft (15.9 m) long and 63 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesGattis School RD
CrossesDyer Branch
Location2.55 MI E of IH 35
RouteCity Street 0
CountyWilliamson County
StateTexas
Coordinates30.49644, -97.63362
Functional classUrban 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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length52 ft (15.9 m)
Longest span9 ft (2.7 m)
Deck width63 ft (19.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,393 (2020)
Projected traffic26,890 by 2030
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$5,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Gattis School RD over Dyer Branch built?

It was built in 1996, making it 29 years old in 2025.

What condition is Gattis School RD over Dyer 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 September 2023.

How much traffic does Gattis School RD over Dyer Branch carry?

About 18,393 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Gattis School RD over Dyer Branch?

The structure is 52 ft (15.9 m) long with a longest span of 9 ft (2.7 m) and a deck 63 ft wide.

Who owns Gattis School RD over Dyer Branch?

It is owned by the City or Municipal Highway Agency.