US Bridges

SH 30 over Gibbons Creek

Poor

Grimes County, Texas · 0.8 MI E of FM 244 · Structure no. 170940021204007

Built
1951
74 years old
Condition
Poor
inspected May 2023
Type
Slab
Concrete Continuous
Length
500 ft
20 main spans
Daily traffic
6,351
2020 count
Owner
State
State Highway Agency

About this bridge

SH 30 over Gibbons Creek is a concrete continuous slab carrying SH 30 over Gibbons Creek in Grimes County, Texas. It was built in 1951, so it is 74 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 6,351 vehicles a day, roughly 10% of them trucks, projected to reach 5,870 by 2039. The structure is 500 ft (152.4 m) long and 29 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSH 30
CrossesGibbons Creek
Location0.8 MI E of FM 244
RouteState Highway 30
CountyGrimes County
StateTexas
Coordinates30.59479, -96.06475
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans20
Design loadOther
Structure length500 ft (152.4 m)
Longest span25 ft (7.6 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,351 (2020)
Projected traffic5,870 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$33,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 30 over Gibbons Creek built?

It was built in 1951, making it 74 years old in 2025.

What condition is SH 30 over Gibbons Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does SH 30 over Gibbons Creek carry?

About 6,351 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is SH 30 over Gibbons Creek?

The structure is 500 ft (152.4 m) long with a longest span of 25 ft (7.6 m) and a deck 29 ft wide.

Who owns SH 30 over Gibbons Creek?

It is owned by the State Highway Agency.