US Bridges

Maple ST108C Pct 4 over N Fork Chambers Creek

Good

Johnson County, Texas · 0.1 MI W FM 1807 Alvarado · Structure no. 021270AA0614001

Built
1997
28 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
1,761
2024 count
Owner
County
County Highway Agency

About this bridge

Maple ST108C Pct 4 over N Fork Chambers Creek is a concrete culvert carrying Maple ST108C Pct 4 over N Fork Chambers Creek in Johnson County, Texas. It was built in 1997, so it is 28 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 1,761 vehicles a day, projected to reach 1,090 by 2036. The structure is 33 ft (10.1 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMaple ST108C Pct 4
CrossesN Fork Chambers Creek
Location0.1 MI W FM 1807 Alvarado
RouteCounty Highway 0
StateTexas
Coordinates32.39529, -97.19636
Functional classRural Minor Collector

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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width30 ft (9 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,761 (2024)
Projected traffic1,090 by 2036
Trucks0%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Maple ST108C Pct 4 over N Fork Chambers Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Maple ST108C Pct 4 over N Fork Chambers Creek 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 November 2024.

How much traffic does Maple ST108C Pct 4 over N Fork Chambers Creek carry?

About 1,761 vehicles per day (2024 count).

How long is Maple ST108C Pct 4 over N Fork Chambers Creek?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 30 ft wide.

Who owns Maple ST108C Pct 4 over N Fork Chambers Creek?

It is owned by the County Highway Agency.